Yeah. I've had my newcastle running at 2.35ghz for the last 9 months without problems, today it was a balmy 95F outside and I decided I didn't want my room the same temperature while playing games. So I'm too lazy to get a software cpu overclocking program and reboot to bios so I can give my CPU a break for once. Go into 'Jumper Free Settings' in bios, turn down 'Front Side Bus' or whatever Asus decided to call it to 200mhz from 235, save and exit. Reboots, POST's, tell it to boot from my primary XP install and it reboots. wtf? POST's, tell it to boot from secondary XP install, reboots. Uh oh. POST's, primary partition in safe mode, hangs at MUP.sys for 10 minutes, ok.....Manual restart, POST, primary partition, restore mode, MUP.sys, reboot. So I figure it wants to cool down or not be molested for a bit, computers are tempermental, I do tech support for a living, happens all the time right? Go lay down for an hour as it's like 1am and I really should sleep, but I take a nap. Now 1:45am, should be good to go now. Power on, POST, primary install, reboot. DAMMIT! I take a shot in the dark and bump it back up to 235mhz, save exit, reboot. POST, primary partition, XP loads. I then promptly leave this post in hope that this has happened to someone else and I'm not crazy.