I bought a 4GB Lexar Basic Flash Device and it was working out of the box. Later when I needed to use it Windows XP SP2 didn't recognize it. It is listed as an unknown device in the device manager. I've been through the troubleshooter that came with XP multiple times and they are unable to help. I e-mailed the support group about 2 weeks ago at Lexar and it was ignored. Windows is telling me to install a driver for the device. I've NEVER heard of a driver for a plug-and-play flash drive before, especially when I had it working before. Any help is greatly thanked!