I had a brother in-law that had Nero screw up his Win2k install that somehow he couldn't boot, it corrupted some boot up file.
If you have Win2k or XP check your logs for system error or software error messges. I have a problem with my desktop machine rebooting when I burn or even sometimes when I try to install from cd-rom. If atpi(sp?) tries to write to a illegal I/O address it will reboot. I've failed at updating the bios to get this resolved
