When we attempt to load a saved game, the load begins but soon the screen starts flickering and the game will not fully load. The only way we manage to fully load games is to use cont alt del, run task manager. Then we close task manager, and clicking on the Civ4Colonization program icon in the quick launch area brings a black screen which eventually fully loads the save. Anyone else having problems loading saved games? We are running Vista. Any assistance greatly appreciated!