Computer will not re-boot after using Knoppix

[spaarks]

While trying out various Live-CD distros I booted Knoppix.
After shutting down using the proper Knoppix procedure my computer will not re-boot, either in Windows xP or and of the Live CDs. It just hangs at the bios display. Pressing F1 does no good.
The computer recovery disk does not boot either.
I have tried rebooting with Live-CD in each of my CD Drives.

Computer is a 3 year old Compaq Athlon 64, and never any problem with it until I used the Knoppix Live CD.

Anyone any idea of what I should do now?

[oz]

Check your motherboard manual for steps needed to reset the BIOS. That might do the trick.

Let us know how it goes.

[spaarks]

Thanks oz, I found the details for resetting the CMOS.

However before I got to do it something strange happened - I switched on the computer (no CD's in the drive) and after about 25 minutes hung up on the Bios screen the computer booted up in Windows - without me doing anything to it at all.

So, what does Knoppix do to the Bios? "m a bit wary of booting up on Knoppix again in case the same or wosre happens
I tried Live-CDs of Ubuntu, PCLOS, Slax and Mepis without any bios problems.

[oz]

It shouldn't do anything to the BIOS, so I'm thinking it might have all be coincidental.

Glad you were able to boot back into Windows.