As the subject states, when I watch a movie I downloaded from the internet, and scroll it forward (in media player 11) suddenly display turns black and a message appears: "digital power saving mode". I can't press alt + F4 , nothing else works except restart!!! It also happened to me in vlc program, so it's not because of media player. At first I thought it was a codec issue, so I uninstalled cccp codec pack, but the problem persisted. It doesn't happen with all my vids, just a few... Oh and and tried messing around with all the options in the "power options", tried different power plans, disabled "turn off display after..." and even disabled screen saver but nothing helps!!! So please help guys!