I'm running the latest version (3.13) of Civilization IV Beyond The Sword in Windows XP SP3, on my 20" iMac. I've installed the Boot Camp drivers that came with Leopard. Unfortunately, though I'm able to set the Windows desktop to the full 1680x1050 resolution if I turn off the restricted resolutions option, I can't choose a resolution higher than 1400x1050 in the game. This works well enough except that everything is stretched horizontally, which is quite irritating. I know the game is supposed to work at this resolution, but I can't for the life of me get it to work on my iMac. Has anyone had any luck with this?