I have a computer thats a few years old. A friend of mine had a computer shop with top-notch equipment laying around and just threw it together for me one day. I do plenty of downloading and all that. Its always ran very well with its 896MB RAM and 1.21G Processor. A few nights ago it started rebooting itself, and after a few times would start rebooting itself while still trying to load Windows. I unhooked the ethernet wire and tried to start Windows, everything went fine untill I plugged the wire back in and opened internet explorer. I figured I just got a virus and tried to reformatt everything and for three nights it would freeze in the middle of loading the boot disc and such. finally it made it thru the install..... all TEN HOURS of it! It went so unbelivably slow and now that windows is installed it takes about 15 min just to get to the welcome screen and another 20 untill I can actually open anything on my desktop. I've changed my RAM chips to any different possiable combination, including each one by itself. I have a seperate back-up hard drive that I've also tried to install Windows on to no avail. I think it maybe my processor. Is there any test I could get to find out or any other ideas that may help? Im usually good at this stuff myself but right now im totally stumped.