I've just put together my computer and when I run Battlefield3 sometimes when I launch the game my screen will split in two equal halves. The top half will look normal/great, the bottom half will look shaky/glitchy, the lighting will be off. This has also happened when I loaded Civ5 and maxed out the settings. This doesn't happen all the time and if with Civ5 if I go down a little bit in the settings it resolves itself, in BF3 if I back out and reload it resolves itself. Is this normal?