Okay, So I was using DVD X Copy to back up a few DVDs of mine. The first few worked fine, but recently everytime I try, it gets about three-fourths the way through the DVD, and then my computer restarts itself. I have hard-drive space available (almost 30 gigs), and I stopped using other programs, and even tried several other programs, but it keeps happening. Does anybody here have any ideas on how to fix this?