Ive had my HD6870 for over a year now and I couldnt be happier with it. I get my new monitor (2560x1400) and I see little green horizontal lines over all the black surfaces on my monitor. I turn OFF "Enable GPU Scaling" and the lines go away for a while. THen eventually the lines come back and then I will turn ON "Enable GPU Scaling" and the lines go away for a while. I 12.10 and have tried unistalling and reinstalling multiple times. What is up with this?