I have not, however, if that was the problem, I dont think my problem would be limited to sins. Windows is running at 1600x1200, and any other game I try I can run at 1600x1200.
I've looked around and havent been able to find a driver for my monitor as it is really old. I do plan on getting a new monitor soon, but for right now I want to get this working. By the way, I tried all 3 versions/expansions of sins with the same result