Frank Brown asked-About half the time it fails to reboot (POST fails, more or less immediately) on a cold power-up. I believe it is significantly more likely to reboot on a power-up if the power has recently been on. I'm suspecting a power supply problem: perhaps filter capacitors --- either in the power supply, or on the motherboard --- need a little extra to charge fully, so the second time around the machine boots. Abit has reported a problem with the GeForce graphic card,if you have that. Also,if you have a surge protector leave it on!This has helped believe it or not. Certain power supplies seem to prevent this problem from happening. AMD has a list of power supplies that are compatible with there processor. HTH's-daŽyl _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://nospin.com - http://nospin.org