I have had this problem for months. On certain DivX files this happens; This happens in DivX player, DivX Web player, VLC... and only happens with certain files (that run fine on other machines). This happens on a clean install of Win XP with no other codecs installed on to conflict. Screencapping with VLC produces and image Without the glitches (I had to digi cam my screen for that cap). I think this is a driver setting at fault somewhere but I have no idea what it could be. Allhelp is much appreciated!