I've got an HP laptop, series HSTNN-105C, 'running' (cough) XP Pro, but it's fucked and I don't know why. Most of the time when I try to boot it, it freezes at 'Mup.sys', but for some reason it booted ok once. It also completely fails to recognise the internal DVD R/W, despite the drive having power and whirring and things when a disk is inserted. I tried to boot it from a Knoppix live CD, but the BIOS seems oblivious to the presence of the DVD drive, and the one time I got it booted into XP, XP didn't have a clue that there was a drive either.