My question: Is this a hardware or software issue?
Following my futile attempt to install an internal DVD-Light Scribe DVD RW drive I have received numerous "Blue Screens". Booting to safe mode, shutting down and rebooting seems to work for now.
Then last night I could not get the hard drive to boot. After many frenzied attempts I finally rocked the computer and the thing booted up just fine. No more blue screen even after repeated shut downs and turn offs.