I just bought a new external hard disk a few weeks ago, a Samsung 80gb one. It was working fine until a few days ago. I plugged it in as usual and added some files to it and cleared the recycle bin. About 20 minutes later I plugged it in again and this message appeared: "USB Device Not Recognised: One of the USB devices attached to this computer has malfunctioned, and Windows does not recognise it. For assistance in solving this problem, click this message." I tried the troubleshooting thing but it didn't help. Nothing appears under disk management. In device manager, it appears as unknown device and says that no drivers are installed for the device. When I tried it out again a few hours later it worked well again. But a few days later until now, the same thing happened everytime I plugged it in, either that or nothing happens at all. Is there any way I could solve the problem? I'm sure sure I did not bump it or anything. Thanks for the help!