I'm running windows xp pro. I bought a zune 2 months ago and I installed the software and everything was working right. Just last week I plugged in my zune and my whole computer froze. i restarted and my wireless mouse and keyboard weren't responding. I plugged the mouse and keyboard into m laptop and they worked fine. I foud a ps/2 mouse and keyboard and the system still worked. I re-installed the usb drivers and it still didn't help. It's as if the ports are dead. I plugged in my zune again and it doens't get a signal because when it's plugged in it immediately begins to charge but it doens't do that. I re-installed my xp pro and now it reboots when i load an embedded quicktime video on a web browser. Also I run steam which is a gaming thing I click on download a game and it reboots as well.... any suggestions? device manager says everthing is working fine.