Last night my new low-end pc (Asrock mainboard, onboard graphics, 1gb ddr2 RAM, WInXP) locked up twice. The screen displayed random colorful patterns on white background, repeating themselves. No drugs involved on my side.

Then I ran antivir and the pc suddenly booted.

Everything's back to normal after I removed a IDE-Adapter-card, which could not be installed.

Can a unrecognized PCI card be the reason for those errors?