I have reported to Catalyst Crew. No feedback will come to me for submission but I post 3 report. One also for screen capture which work for DX9 but not DX11 with print screen button.
I do much more intense tests and the new AMD card 6950 with 2 GB of memory handle all games I have now. GTX 460 1 GB stutter but not 6950 2 GB. Dirt 2 very fast and no stutter at all now.
Since Nvidia cards do same in DX11 as AMD card then I will stick with AMD card in the system. I see difference in way Anti-Alias is done in AMD vs NVIDIA but it still look good in gaming so I will keep it.
Catalyst driver 11.4 works good in Windows 7 64 bit even with LCD scaling for DX9 and regular desktop now. Better than was the time with XP. I grow to like this card and may recommend to others now. It is fast and smooth. Monthly driver updates also.
Thank you for helping