I'm having a bizzare graphical issue with the Steam version of Avernum: Escape from the Pit (v1.0.1S). I've tested, and I don't have the same issue with the demo (v1.0.1), so I know what things should look like.
When my Steam copy loads, I have three problems:
Instead of the swirly spiral background behind the "Spiderweb Software" logo, I have a spinning Avernum: Eftp logo.
Instead of showing a piece of art with three people on a ledge overlooking an underground village, I get the right half of it duplicated twice
Instead of the normal background to the main menu, I have a second copy of the menu (larger and unclickable) in the upper right, and a spritemap in the upper left. (I believe it's G134.jpg)
I get the same effect regardless of what resolution, graphics quality, or window mode I select. Uninstalling and reinstalling have not fixed this issue. And, as I mentioned above, both the regular and DirectX versions of the demo work fine.
Any ideas? Fixes? Other things to try?