Hi I put win98se on a pentium pro-200mhz and it is always locking up. The mouse and keyboard quit working and I have to use the reset button. I might be 5 min. and it might take 30 min. before it locks-up. Had a defrag problem and installed diskeeperlite and that seems to have fixed that, I thought it might be IE(6) so i ran the repair tool, that didn't help. A friend said it might be the processor over heating but I can't seem to find a temp. reading on it. Please any help is appreciated