I came across this forum through a good search hoping to help fix my problems. Around Christmas I got a Kaser Storage Vault 250GB because I needed how much space it offers for the price. I am one of those weird people who wipe their computers every so often just to have the clean feeling.. *I have OCD* Anyway my computer I have a Dell Dimension L700CXE Running Windows XP, service pack 2 512 MB Ram 700 MHz processor USB 2.0 PCI Cards I installed myself 111GB Hard Drive (actually 120 but the computer only says 111) so on so on. Anyway I've had this problem since I got the Kaser external hard drive. I installed the drives like normal everything worked just fine... The Kaser hard drive boots up fine.. and I try to send my files... about 95% of the time the blue LED light on the back of the drive freezes up and the drive stops doing anything and reboots on the system. I just use the LED light for a reference because I can see it on my wall.. it's flashes constantly when transferring files correctly... then when it has a problem the light stops flashing and then the files transfer stops, says it can't be completed and such. I have the same problem when getting files onto or off the Kaser Storage Vault. At this point I'm just really really annoyed. Kaser never responds to emails about the drive with anything relevant to help me with. Can anyone here think of anything that might be causing the problem.. or any way to fix it. I really just want to be able to get my files on and off without having problems all the time. Any help would be appreciated. EDIT: I guess I should be a tiny bit more specific. Usually with the error I get a pop up with something along the lines of " Device cannot perform this action because of an I/O device error." Sometimes it doesn't pop up but most times it does.