20 Most Recent Kensington Expert Mouse Trackball Questions & Answers

I superglued a bead close to the exact same size in it's place and it worked for me. The bead must be round and smooth (w/o any glue residue or hole on exposed surface that the ball touches on) else the movements are a bit jerky and it's hard to control. Hardest part is finding that bead size. Perhaps a bead store?

Kensington... | Answered on Jan 09, 2016

That depends on the quality of the mouse that your using.
Cleaning/ opening the mouse will not work at all.
The quality of the mouse.

Kensington... | Answered on Feb 01, 2014

Have you tried going to the control Panel in the Start Menu?
Click on Mouse and you can adjust everthing there

Kensington... | Answered on Jul 05, 2012

Try Step A

Unplugging it and re plugging it back in

Or if you have another mouse do step A then move the curser with the mouse and now the trackball will work

Frustrating Isn't it !

Kensington... | Answered on May 24, 2012

I posted a comment regarding the solution I found for my Kensington Expert Mouse problems with cursor movement but I guess I messed up some how because I dont see my comment posted so Im reposting. Kensington emailed me after an online inquiry which i wasshocked about because they do not provide tech support for their products. Theyhave a Tech Support web portal for all inquiries of any Kensington products.Anirudh Reddy provided me with a url to their tech support company. It ishttp://accoblobstorageus.blob.core.windows.net/software/484d7363-765d-4810-b8ff-c8111d367961.zip hopefully you have an unzip program such aswinzip, but if not you can d/l a 30 day trial of winzip free.After that trial,I believe you can purchase it for $29 or somewhere near that amount. If you have online dell support and yourwarranty covers it, they will do a remote access to fix your mouse troubles. they helped me with mine. After hours of searching the windows 7 compatibilitysite I finally found out that it is compatible and it says no software isneeded and it says it installsautomatically once plugged in..also try plugging it into another port. Thats what Dell told me to do. if you havewindows 7 the following is the link from the compatibility sitehttp://www.microsoft.com/windows/compatibility/windows-7/en-us/Details.aspx?type=Hardware&p=Kensington%20Expert%20Mouse%20USB%2fPS2%20Trackball&v=Kensington&uid=64217&l=en-US&pf=2&pi=3&s=Kensington%20Expert%20Mouse%206.0.3&os=64-bit That also has a link to kensington where itsays you can d/l it. im doubting thatbut you can try. One more thing; afriend told me about www.edugeek.net Iwas told that if you go there, say that you're not a tech person but that the site wasrecommended and someone will assist you with whatever you need. I know thats alot of info but i thot itbetter to be thorough than not. The Dell help was the best for me but if you dont have it, you might try the other suggestions and hopefully your problem will be solved. goodluck and I hope it works for ya

Kensington... | Answered on Apr 14, 2012

You can pop the ball out. Once you have it out take a q-tip and some alcohol and clean the rollers. You'll notice a lot of gunk on the rollers. Once you do that it's as good as new. To take the ball out turn the unit upside and give it a good shake. the ball should fall out. Be sure to be ready to catch it.

Kensington... | Answered on Mar 15, 2011

I have the same problem running under win7 64 bit, I have just pulled apart my expert mouse\trackball to clean it and found that the scroll ring works by using a little infrared diode ... so no cleaning required ...

the screws for the base are located under the little rubber feet.

So I think the problem may be more related to drivers\software...
at the moment I cant find a win 64bit driver or mouse works application anywhere

Kensington... | Answered on May 20, 2010

Kensington took its time bringing an optical version of its venerable Turbo Mouse to market. The Turbo Mouse was the original multi-button ADB trackball, introduced back in the late 1980s with two buttons and evolving through the late 1990s into a four-button, do-everything wunderkind of a mouse. Unfortunately, Kensington didn’t rush to produce a USB version once the iMac hit the market, leaving users stuck with the imperfect solution of a USB-ADB converter or—heaven forbid—even worse, the stock iMac mouse. Finally, when it got a USB version to market, the rest of the market had moved on to the optical mouse, and Kensington’s renamed Expert Mouse was behind the times again.
No longer.
expert-mouse.gif The latest revision of the Expert Mouse, version 7.0, has been out for about a year, and it fully lives up to its billing as the “ultimate trackball.” With USB connectivity, optical tracking, four programmable buttons, a brilliantly conceived “Scroll Ring,” an included wrist rest, and a billiard-size trackball, this mouse is the whole package.
Let’s get one thing out of the way: the Expert Mouse is the epitome of all things trackball. It’s the latest offspring of the original trackball mouse. If you’re a trackball-hater, approach this review with an open mind. Don’t hate the player. Hate the game—and Kensington’s game is not to be hated lightly.
A good mouse starts off with one of two things: either it’s dead simple or it has great software. Apple has always taken the dead-simple route. Kensington takes the opposite tack, with incredible software that makes an otherwise complex mouse quite easy to use.
Software has traditionally been a Kensington strong point, and the latest version of MouseWorks for Mac OS X is no exception. The only drawback is that third-party mouse support has disappeared. (A little-known secret on the Classic Mac OS was the fact that Kensington’s ADB MouseWorks software was amazingly supportive of non-Kensington devices, sort of like an ADB version of USB Overdrive.) It’s hard to find fault with Kensington for failing to re-implement this feature when it rewrote the software from scratch for Mac OS X.
expert-app-settings.gif MouseWorks will be immediately familiar to anyone who has used the Classic version, except it’s now implemented as a preference pane rather than a control panel application. Separate tabs are provided for button assignments, scrolling control, click speed, and—best of all—acceleration, which allows for a fantastic degree of fine tuning. There is excellent help and documentation, which are thankfully no longer the rarity they once were. Buttons can be assigned on a per-application basis, giving the user limitless possibilities for individual behavior in each application. This comes in especially handy for media pros, though almost every power user can, in time, make good use of it.
expert-acceleration.gif As with all good software, the default settings are sensible, too, though most folks will probably find the default scrolling speed and cursor tracking a bit too slow. Unlike Classic versions of MouseWorks, the new version bases these values on their corresponding global system preferences, so if you find yourself wanting to turn it up to eleven, make sure you’ve adjusted the settings in the Keyboard & Mouse preference pane first. Conversely, if you find it turned up to eleven and a mere tap of the mouse sends the cursor all the way across your screen, make sure the Keyboard & Mouse settings aren’t too high.
There seems to be one minor bug with the software under Mac OS X 10.3: plugging or unplugging the mouse seems to activate the screensaver within about 20 seconds. There doesn’t appear to be any rhyme or reason to this behavior, but it’s fairly reliable and happens almost every time.
Let’s move on to the mouse itself. The great benefit of this long line of trackballs has always been the size of the ball, which allows for much better cursor control than, say, the built-in trackballs on 100-series PowerBooks or the thumb-balls used on Logitech and Microsoft’s widely tolerated optical trackballs. If you’re soured on trackballs because of bad experiences with another model, rest assured this is one area where size does matter, and the Expert Mouse could well change your opinion.
expert-mouse-hand.gif The included wrist rest is a nice touch. Though wrist-rest mousepads are a dime a dozen now, the pleather-covered dense foam makes for a comfortable and stable support. Just don’t plan on taking it off. It snaps into its two mounting holes very tightly, and it’s pretty tricky to remove. The leading edge sticks up a little higher than it should, which is mildly uncomfortable. Moving your hand up on the mouse a bit helps, but doesn’t entirely avoid the problem. Of course, if you already have a wrist-rest mousepad, this should be a non-issue.
Kensington sensibly attaches a six-foot cord, putting the Expert Mouse within reach of even the worst hide-the-tower-under-the-desk setups. This cord is no longer detachable, as the ADB cable on the Turbo Mouse was, nor is there a USB pass-through on the Expert Mouse, though there’s admittedly less reason for one with the proliferation of USB hubs on the desktop. Though not tested for this review, a wireless version of the Expert Mouse (using proprietary RF, not Bluetooth, unfortunately—maybe in version 8.0?) is available for an additional $20, if you’re the type who hates any cord clutter and loves to use batteries.
Tracking is accurate and generally smooth, although not as precise as I remember the Turbo Mouse being under Mac OS 9 on my Wall Street, especially at slow tracking speeds. Fortunately, with the optical pickups, you’ll never have to worry about the ball sticking or the horrible thunking sounds the ball bearings in the old Turbo Mouse could make when dirt and dust got into the mechanism. Trust me, with heavy use, this happened more often than you might think, and the Turbo Mouse required fairly frequent cleaning. It’s one of the disadvantages of a trackball, with its upward-facing mechanism that collects whatever gravity drops on the ball.
expert-scrolling.gif Scrolling with the ring is very comfortable and feels quite natural, since my ring finger and thumb rest on or near the scroll ring anyway. It is not, however, as smooth as the tracking is. In fact, it’s noticeably jumpy at times. The scroll ring has very shallow detents that seem to exacerbate this problem, much like the soft clicking you feel on most scroll-wheel mice. At least some of the blame can be laid at the feet of application developers, though. Scrolling is noticeably smoother in Safari than in either Camino or Eudora.
Finally, those four glorious, programmable buttons are all within easy reach for maximum clickability. Even reaching over the massive trackball to chord is no problem, as your hand settles into a natural spread over the top of the mouse.
When I dropped $120 on a Turbo Mouse back in 1999, I did so sight unseen and without having tried it. Call it instinct. With the $20 price drop and superior features, the Expert Mouse is an even better value than its grandfather was, because the experience is markedly improved. While a lot of people might say $100 is too much for a mouse, a lot of people haven’t given the Expert Mouse a fair shake.
Kensington is one of the very few computer or peripheral makers to offer a fully transferable five-year warranty on anything, and their technical support has been highly praised in the rare case that it’s necessary. Do whatever you can to experience this mouse, and then try to argue it isn’t the best trackball—and maybe the best mouse—ever made. Well done, Kensington. Well done indeed.

Kensington... | Answered on May 04, 2010

With proper drivers and if it was working with other Windows XP/VIsta, it should work as win 7 is backwards compatible.

Kensington... | Answered on Apr 09, 2010


So to hear that you are still having trouble with your Kensington Expert. The issue with rechargeable batteries it the power they put out if you do not get the right power then that is what causes the issues.

Unfortantly I can not see the other responces but I used to work tech support for a company that had these devices so bear with me if I ask some questions that you have already beeen asked.

The first thing I did is check there FAQ and got this info

"Our other battery-operated products are designed for use with 1.5 volt power cells, the standard in alkaline and other nonrechargeable batteries. NiCD (nickel cadmium) and NiMH (nickel metal hydride) rechargeable batteries, on the other hand, commonly ship with 1.2v and once fully charged provide from 1.3v to 1.4v of power.

While, under normal conditions, rechargeable batteries won't damage your mouse or keyboard, they may not provide the same performance as you would receive from full-strength alkaline batteries.

If you use rechargeable batteries and experience difficulty with your product, replace the batteries with a fresh set of alkaline power cells before contacting technical support."

So you see that you have to have batteries that run at 1.5 volt. They do make them you just have to look on the patchaging.

So I am guessing your unit came with standard alkaline batteries. If you are losssing that much power then you have some kind of short in the unit that is draining the unit.

At this point you have a few options. First you can get some Lithium Ion (Li-Ion) batteries that run at 1.5 volts to keep swapping out so that you do not have to keep using up alkaline batteries. Note most newer devices use Lithium Ion (Li-Ion) batteries and they are designed to last longer in electronic devices.

The other option is to keep on eBay and see if you can find one that some one is selling. Even if the ball is missing you can take the one off yours.

Let me know if you have any more problems or questions


Kensington... | Answered on Apr 06, 2010

Visit Kensington website for vista drivers. (Support Section or Downloads section)

Kensington... | Answered on Mar 13, 2010

Hi friend,

You need to install the drives then it will work...so click on link for down load the drives....http://us.kensington.com/html/1466.html

Kensington... | Answered on Jan 24, 2010

This cable is a serial to PS2. You can buy these on the Internet from cablestogo.com or another cable company. If you cannot find this, or it is too costly, this mouse is being sold on the web for a very reasonable amount.

Kensington... | Answered on Dec 15, 2009

Hasn't been available for years, but I found one in a thrift store for $5 this week. Unless you're lucky like me and have a store that has heaps of old gear, you probably won't just find one by chance. But good luck anyway!

Kensington... | Answered on Dec 12, 2009

Please see the link below


If this solution has helped you, please take the time to rate me.

Kensington... | Answered on Dec 12, 2009

Scan for viruses?
Check to see how much ram you have?
Turn your computer off or leave it on all them time then it would be adviseable to turn it off the memory needs to reset once in awhile and it becomes bogged down if you leave your computer on all the time.
Its adviseable to turn it off anyway as you will save on your power bill.

Kensington... | Answered on Nov 02, 2009

Yes, isopropyl is perfect.

Kensington... | Answered on Nov 02, 2009


Kensington... | Answered on May 22, 2009

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