Ah, the UI problem reappears, sometimes!
Game crashes a lot, with a "DX Error: Invalid Call" statement! After the crash, if I start the game again, UI is again without background, but the problem fixes after the reboot, or even after "logoff - login"!
And, also, I know I don't have state of the art video card (ATI 3870), but framerate looks rather poor, even with an 10.8 driver. Compared with an even older video card (NVIDIA 8600GT), it looks more - less the same. I just hope it will improve with some future giant patch!
It kind of, reminds me of many years ago, when I got Civilization 4. At the beginning, the game was full of bugs, glitches! After two large patches, it has become playable! I guess it is common with such large turn - based games. Pity!