I'm no noob, but I can't figure out why DVD playback is so choppy it isn't usable on my D101GGC mobo system. Ran memtest 18 hrs and no issues. Got the drivers from Intel. No unknown devices now. Optimized system using Tuneup Utilities 2013. VLC 2.04 is choppy WMP doesn't have codecs for DVD, system not on Internet. Can anyone offer any suggestions, tools or other resources to pinpoint the problem?