Hey guys I've got a really annoying problem on my mac that I'd do anything to get rid of. When I play a streamed movie or tv programme off the net (ie from iplayer or 4OD) firstly the mouse doesn't disappear after 3-4 seconds and is always visible on screen and secondly on some occasions the screen just goes white! I have to quit playback and then go back to full screen to get rid of it. Does anyone have any idea what could be the problem??