I finally managed to get Vista to install on my computer (after much wailing and gnashing of teeth). Unfortunately, it's very unstable and locks up at seemingly random times. It does it almost every time I install something (which I've been doing alot of lately, as it is a fresh install), forcing me to restart the computer and try again. I can usually get it to install after three or four attempts. It also freezes sometimes when I open a folder or a program. Sometimes it even freezes if I leave it alone and don't do anything; I come back and I can't move the mouse. I've tried repairing the installation, but it said there was nothing wrong with it. I ran a memory diagnostic and it turned up clean. I ran a virus scan, but it was clean too. I was thinking it was a conflict of some kind between two programs, but it was doing it before I put anything on it. I was also thinking it might be a driver issue with the motherboard or something, but I installed and updated all of the drivers (again, with much gnashing of teeth) and it still freezes. What's going on?