when i watch videos on my PC, everything is playing fine when it's in a window, but when i double click it to display in fullscreen mode(without the windows around it), i get a fuzzy image that shakes left and right like mad. when i go back to regulra windowed mode it plays fine. this goes to all media players on my PC(windows media player, realplayer, divx, VLC, Nero player...you name it)

i'm gonna try uninstalling all my codecs to see if this is what's causing it. if not, i will have to re-install a new codec pack. which brings me to my next questions, what's the best(and fullest) codec pack out there?