Hello Intel core 2 quad q9550 2,83 ghz 4 gig ram ddr2 800mhz Club Gtx 560Ti Asus p5ql pro motherboard windows 7 32bit I upgraded my video card to a Gtx560Ti (old one gtx260). When I start a game I see flicker or waves coming from down the sreen and moving up, These are constant in games. Everything looks fine in the desktop and movies works normally. Then I put back my old card Games looked Normal again, everything worked fine. I returned the card to the shop becuase I thought that it was a faulty card and I got a new one. But same problem with the new card. I borrowed a freinds 750watt PSU with no luck.(he just bought the same GPU as i did but everything works fine for him) I have tried to Update drivers, tried older drivers, uninstalled drivers and then installing them again. The game Starcraft 2 is working really badly. When i have the game in windowed mode and then running task manager next to the game i see Starcraft 2 Not responding every 5 sec, So my Fps drops down to about 2 every 5 sec ingame and i get a huge lagg spike. I have also tried switching monitors but no luck there. I noticed that it's really just in games and in a Stress test i tried. When i have Starcraft 2 Windowed and i Alt+tab out everything works great, but when i alt+tab ingame again the waves are back...Vertical sync fixes the "flickering" a little bit in some games but it never eliminates them. Note that everything starts working perfecly when i put back my old video card. I have tested about 10 different games and they all have the same problem. I have tried finding someone on the Intrenet with the same problem and i found a couple threads with somewhat similar but no fix, or just the replys Update drivers... Also tried alot of drifferent settings in nvidia control panel. I would make a Fraps video or screenshot of the problem but there's another problem.The "flickering waves" are not visible in the frapsed videos or screenshots. Everything seems to be working fine on the video. Hope I get it working soon, 240 € is alot of money for me..:bang: I hope someone is willing to Read through this Wall of text. Thanks in advance.