I bought a new hitachi 80g hdd ,installed xp pro did updates to sp2 sorry also had 4 partitions on hdd. than i tried to install suse first cd good 2nd cd comp shut down. tried again comp shut down early into 1st cd . each time comp shut down quicker.so i tried to llf the hdd. wouldnt let me kept shutting down.than I tried a floppy boot 98 still shut down.tried other operating systems win2000 etc. all shut the computer down knoppis shut it down same with dos.But low and behold xp starts it up and runs just fine. ??????????? I personally know of two other people with the same problem on their hdd.