Have you guys covered the above topic already, and if so, where can I find the posts? If not, has anyone else been experiencing this error message with Windows 2000 professional. I'm running a Celeron 1 mz not overclocked. Every time I get this error message, the machine reboots itself. I can walk away from it, do other stuff and hear it rebooting about every 20 minutes or so. Any clues as to cause? My initial gut feeling is flaky memory sticks. Please help!