Upgraded Processor, Now Have Bootup Problem

[Harry]

I am using Windows 2000 pro on a Dell Optiplex GX1 and recently installed a Pentium 600e mhz processor 100mhz fsb and upgraded-flashed the Bios to the proper A07. Now, every other time I bootup, 3/4 of my desktop is black (with a small windows logo) and all nonfunctional. I then hit the restart button and it checks all the files and then lets me access my desktop. I thought this might have been a virus but my antivirus found nothing. And my spyware programs found nothing either. Then I completely reformatted my C drive and now I'm still getting the same problem on bootup though not every time. Other than bootup, I have no other problems.

1. Do I have a bad processor and is there some way to test for that?

2. Do I need to install some video patch or something?

3. Is there some boot bios log I can check that would tell me the exact problem?

[Panama Red]

Have you checked in your bios to see if the cpu is recognized correctly? How bout the Device Manager? Any conflicts or cautions showing there? Sounds like a video driver.