Evening all. Im running a 2009 Mac Pro with 3 GT120's into 3 screens, 12gig o ram and a myriad of drives. Lately I find I cant play the simplest of things (like eye tv or quick time) with out it stalling/glitching every 3 seconds. Ive done the usual disk checking and ensuring nothing else is running but nothing works. Opened my test user too and it misbehaves in there too. Also just noticed that it seems to stall when Im typing this too? (TV is playing too). Any ideas?