While I was fighting in the Arena, Might and Magic VII suddenly crashed on me. This was the first time I've had a problem with it, and I've already played the game for like thirty, forty hours. When I start up the game, now, however, it refuses to play in anything except a tiny tiny window (it always played fullscreen before). I tried setting the program under the Properties tab to run maximized, but that made the game stretch oddly, and my mouse didn't work. If it's important, I'm running Windows Vista 64-bit.

Any advice would be greatly appreciated!

At first that didn't work, but when I run the program as an administrator it did. Thank you very much for your help!