I recently did a fresh install of XP pro on a thinkpad. After installing everything was fine. I ran a few windows updates, rebooted a few times, then started the install of Office XP. Halfway through install there was an error and the laptop locked up. I turned the laptop off and on, but it was unable to boot. "Insert system diskette and press Enter key to reboot". If I put the XP pro cd in and reboot it will boot into Windows just fine. After it boots i can take the cd out, and use it like normal. However everytime I boot I must have the cd in or else i will get the insert system diskette error.