Connection problems i have a macbook and a dell, only recently the hard-drive stopped working on my dell. but however it works perfectly on my mac book. Ive tried other windows based computers but it still doest work any ideas?

Mac OsX users must install driver software into their MacBooks to use it. Go to the mfr's home page and download the driver into your Mac Air and it should work fine for you.

Probably not an issue with the MacBook but with the Pleomax drive. Be sure the drive is getting enough power to begin with. If it came with a 2 headed USB cable be sure to connect BOTH USB connectors to the Mac. You may also want to try the drive while your COMPUTER is plugged in and charging. Laptops and external drives don't always get along due to power differences and specifically laptops who do not want to waste their battery power on an external drive. If all else fails, try the drive on another computer just to make sure it is a drive problem and then contact the manufacturer for a repalcement drive.

First determine if problem is with your macbook or the drive. Does the drive work on any other computers? If not, then the problem is either the drive or the Acomdata enclosure holding the drive. You'll need to get a usb HDD dock, extract the harddrive from your Acomdata drive and plug the drive into the HDD dock. If your mac is still unable to read the drive, the drive itself is probably not working anymore. If you're a novice and have never attempted data recovery before, I would recommend a data recovery service if it is important that you recover your files. If the the problem is with the drive, there may still be a good chance your files can be recovered but only if you know what you're doing. You don't want to run the risk of ruining that chance and attempt this yourself if you don't have the proper tools or knowledge.

Check for a failing hard drive
Trying booting from the Mac OS X install disc. insert the Mac OS X install disc. press the start button, while holding down the "C" key on the keyboard
Once you are running from the disc. go to Disk Utilities select the hard drive click the "repair permissions" button at the bottom.
If you get any red errors listed or it doesn't seem to finish repairing the permissions you have a failing hard drive and it will need to be replaced.

sounds like while the hard drive was being replaced the usb outlets were tampered with. bring it into apple to replace your hard drive

from my experience, you have problem with the hard drive, change the hard drive will be solve your problem.

Has it only just stopped working or has it been unable to work from the beginning? Are the files you are trying to transfer to the Hard disk already in use? I would recommend reformatting the hard drive. Formatting will put the hard drive back to it's original state. It will wipe all the data though, so make sure you back it up first. If that doesn't work then I'm not sure. Macs are not usually prone to viruses.

You need the original Mac OS recovery cds to initialize the hard drive and reinstall the software. Aplle calls formatting the hard drive- Initializing the hard drive. If you don't have the cds, then you need to purchase the Mac OS cds. either Tiger or Panther (again, that is what Apple calls it's software)

If the unit still boots up but is having issues, you can click on the hard drive icon. , click on Applications. Click on Disk Utility.
Click on repair. The OS will repair any errors that it finds. If this works, great. If not you will have to use the Mac OS cds.


If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

DO NOT panic! Try this: restart your computer and plug your USB in again(this helps to clean the buffer), see if you drive can be recognized.

If you still can't access the data inside, try this data recovery program Wondershare Data Recovery. Get the program here,

Mac Data Recovery (Mac OS version)
Windows Data Recovery (Windows Version)

Take care - Before those items are recovered, stop saving more files to the USB in case the file data are overwritten!

is it a airport used or a router? if so, have you tried to reset it?