"USB Device not recognized" on Windows XP
A mate of mine is currently experiencing issues when plugging in USB storage devices, such as his pen drive (a SanDisk Cruzer Micro), and his MP3 player (a Sony NW A-808).
He's tried them in both the front and rear USB ports, as well as into the ports on a PCI card he has (to eliminate the motherboard USB controller) - all with the same problem.
His USB mouse, keyboard and webcam all work fine, and rebooting worked a few times, but doesn't seem to work now.
Plugging the devices into other people's computers works fine.
We've checked the registry and file permissions for the restrictions preventing the addition of USB storage devices, and they're enabled.
The devices appear to work until the Windows Kernel kicks in, when the keyboard lights refresh - then the pen drive light goes off, and the MP3 player stops reporting being connected.