Updated my drivers and got it working.

It seems the last time I ran the AMD catalyst updater it downloaded an incorrect driver for a slightly different model.

I just learned about this game and having played all sort of roguelikes I wanted to give this one a try. Just one problem - when I try to load the tileset version the screen flickers black and returns to desktop. I can't run the tileset version at all. I thought it might be that I'm running Windows ...