New
#31
Hello again,
Sorry for the long delay; I started a new job and put the forum threads on the back burner.
Try burning an Ubuntu Live CD: Download | Ubuntu
Boot from that, selecting "Try Ubuntu with no changes...", and see if you get any trouble. If so, you may start looking at the motherboard. It seems like this is a certain hardware error, but you're ruling out my best guesses. All we can do at this point is swap and observe.