Thanks, Seth, for your replay. I also had some experience with ATI (RadeonTM 1250) but it was positive
I successfully configured UI2 without transparency with 1080p resolution. I used fglrx driver. The only issue was with sound over HDMI. But I expected that nVidia 8300 won't have any problem with HD and UI2. Initially I thought that I set friquency wrongly. But I checked in the TV manual and found that it should be 60Hz. Strange, strange, strange.