Hello. This is my first posting. I have a Windows XP Professional SP2, and four usb ports in the back. They are assigned letters-A,B,C, and D. I am trying to insert my JetFlash and it will not connect to the usb ports in the back. Btw, it works on other computers, just not mine. HELP!!!!!! I have a suspicion that it is corrupted but there were not files detected. I also reformatted the drive.