I managed to get Thief Gold to run on Vista, but I've since upgraded to a different machine running Windows 7 and I've run into trouble. I'm running the game in compatibility mode and on a single processor, as usual.
As soon as I start up the game, the graphics freeze. The first frame of the Eidos logo movie appears on screen, and from then on doesn't change. The sound continues to run, and I can listen to the opening movies, or skip past them to the menu, hear the sounds of the menu buttons, but no matter what the image on screen stays frozen on that first frame of that first movie. (if I don't start in compatibility mode, it skips the movie and freezes on the first frame of the menu instead).
I'm running Windows 7, with Intel HD graphics Core i3, and Thief Gold v1.37. I can tell it's a graphics problem, since asides from the image the game seems to run fine. What should I try to fix it?