Since buying a new pc I have observed that all my video files stutter where none used to stutter on my older rig. My new rig has k-lite codec pack installed. I have tried running files on vlc, mpc and wmp and it playes up on all of them. I have updated all my drivers. My rig consists of gtx680 4gb, 3770k cpu, hyper x 16gb ram, thermaltake water 2.0 cooler, thermaltake toughpower 850w power source etc. My primary hard drive is Samsung SSD 840, Any idea what the problem may be? I note I am definitely plugged into the gpu. My intel drivers are up to date. I have turned xmp profile on. It is still stuttering with both audio and video. I will further note that I have absolutely no issues on games or when playing music. Only when playing videos. Grrrrrr