So the other night my PC takes a dump and decides to reboot. Basically it began the whole windows failed to boot up properly error and has the endless loop of loading "normally or safe mode or last known good configuration". Ive tried them all and its an endless loop and never see the XP splash screen. So initially I thought my hdd was dead or dying so I purchased a new drive (I needed more gigs anyway). Now Windows XP will not even install. I put in my XP disc and Windows goes through the whole initial loading files stuff and then says "starting windows", then reboots, and starts the entire process over again. I never get to the actual setup in xp, i.e. selecting the drive, formatting, etc.. So then I thought it was ram related.. I have two sticks of ddr2and four slots on my abit fatality mobo. I did the entire musical chairs routine trying all slots with one or both of the sticks and nothing changes. Does DDR require pairs? I thought that it didn't, but if it does this could simply be a bad stick issue. My BIOS sees everything correctly, total ram, hdd's, dvd drive, etc.. Any suggestions on this issue?