I've installed the game, the opening menu loads but the mouse won't click. It shows the gauntlet shape, will move around, but no button clicks are registering. I've tried 3 mouses, they all work with all other programs, but not with the opening of Kings Bounty: the legend. I can press escape to get a quit option and enter to quit. Or I can press F3 to quick load a save game--but I don't have any saved since I can't start the game. So the game isn't frozen. It just won't recognize the mouse. Anyone know how to fix this?

(Yes, I have the latest DirectX. Yes, I have uninstalled and reloaded 3 times. Yes, the file integrity checks out each time. Yes, my other games from Gog work great on my computer.)