DVD Decrypter/Shrink Problems



I seem to be having problems with both DVD Decrypter and DVDShrink lately. I’ve recently been backing up my dvd collection with my new HP dvd 840e and was at first not experiencing any problems. I was ripping with Decrypter and then compressing and burning with DVDShrink. However all of a sudden my computer restarts itself when I activate either of these programs. Sometimes at soon as I click on them, other times as soon as I am in the middle of running them. I’ve run Ad-aware, CCleaner, SpyBot, etc. and my computer itself is just fine. I’m looking for some insight on why this might be happening. Thanks in advance.