Ok, this never happened to me when I was using my copy of windows xp sp1 but I got a copy of sp2 recently and everytime I plug in a usb device thats not a mouse or keyboard, it freezes my system. I have no idea what the problem is but I have updating the drivers and everything. I had initially thought that I had shorted out my front panel connections but it seems that the usb straight out of my motherboard doesnt work either. My main problem is when I connect my mp3 player, which is a ums device and detected as a mass storage drive, its ok if i dont use the player, but once I start transferring files then it freezes. Any help is appreciated, especially since I've been stuck with the same music for the past two months.