that whenever I screw around with the memory clock settings on either of my nVidias, my screen size gets all fuxored? Literally too big to do anything. I have to count tab hits to get it to resize because i can't get down to that point. all windows are HUGE and it's impossible to see anything. this happened with the gf2 & gf4, 15" proview & 19" KDS...any ideas?