I recently had to replace hard drive and reinstall XP. System seemed be fine after doing many updates. Today, I cannot get it to boot. I get the blue HP invent screen, followed by what looks and sounds like some activity on the CD then nothing. It almost looks like the bios is stuck. I have tried putting a bootable CD in the CD drive but it does not change the symptoms. Does anyone have any diagnostic suggestions? If it is a BIOS problem (new bios from hp site was part of the rebuild process), how am i going to get it fixed when I can’t even access the BIOS?