My dell d610 sometimes the touch pad work and sometimes no, what is the cause, adn why and how to fix it

What you can initially do is to update the driver.

1. Press on the windows key + R. A run box will appear.
2. Type devmgmt.msc then click on ok. The device manage will appear.

1. Click on the plus sign besides mice and other pointing devices.
2. Right click on the item that will be pertaining to your touch pad.
3. Choose update driver and let the internet work for you.

If this does not work, you will need to totally reinstall the driver.

1. On the same screen (device manager) right click on the touch pad driver again, the choose uninstall.
2. follow the prompts for uninstallation. You might wanna uninstall any mouse related drivers as well (these application can also cause conflicts thus causing your touch pad not to work)
3. download the touch pad driver available from the link I provided below.
4. follow the prompts for installation.
5. restart

Dell Vostro Driver list (click here to view all available drivers for your portable system)
Dell Vostro Touch Pad Driver (click here to download the touch pad driver)
It this does not work, you will need to call Dell Technical Support to have the laptop serviced. That is if the portable still has warranty. If not, then you will need to buy a USB mouse as a replacement.
for additional information visit Dell support website: support.dell.com

There is switch buttom on your laptop like wifi switch to disable touch pad. It is within the perimeter of your keyboard

As you type, your wrists could be close-enough to the touch-pad to move the mouse-pointer.

Click Start
Click Control Panel
Click Mouse
Change the setting to disable the touch-pad.

The touch pad on a Dell Latitude D610 works much the same as with other laptops. You can move your finger around the pad to simulate the movement of a mouse, and it will cause the pointer to move across the screen. You can also tap on the touch pad (gently) to "click" on a file, folder, or other item. The touch pad on a D610 doesn't have a hardware switch like some other laptops do so that you can turn it on or off -- it's just always on.

function key is Fn key on keyboard.
these keys might be in orange color
with the help of these keys you can control sound volume. you can adjust screen resolution like brightness .you can also turn off/on wireless features.These keys are like shorcuts keys to perform few functions on your laptop.

To turn off your the finger pad

You can use the Mouse Properties window to disable the touch pad and track stick or adjust their settings.
Open the Control Panel, and then click Mouse. For information about the Control Panel, see Windows Help and Support Center <findinfo.htm>.

In the Mouse Properties window:
Click the Device Select tab to disable the touch pad and track stick.
Click the Touch Pad tab to adjust touch pad and track stick settings.

Click OK to save the settings and close the window.

It is a software setting under Control Panel / Mouse. Look for the setting for "enable / disable" and choose the appropriate setting.

Have you installed the touchpad driver?

go to
http://support.euro.dell.com/support
select your D610
You will then be presented with the drivers for your D610
Download the Audio Sigmatel driver and run the file to install the driver.

this could be cause by a bad touch-pad sensor. if it crawls off-screen without touching the mouse.

The light indicator for the battery is; green-charging, yellow-battery failure, and red-charging system failure. The charging system failure happens when the power management chip fails. The pm chip regulates and controls the power input & usage, allows the machine to switch from AC to battery, and cotrols the charging. This will also cause the problem with the power button not workin or being hard to start. Unfortunately, the motherboard will have to be replaced in order to fix this.