[Ethan_Hunt]

A graphic card won't fix the problem as it's not connected with your graphics memory by anyway.All you need to do is find the .cfg file like dOm1naTOr suggested or in some cases a .ini files which contain the games configuration details.You'll need to hunt for the resolution end & switch the Vertical & Horizontal resolution for the game to one which is supported by your monitor.Save the file & then start the game.Also like dOm1naTOr said,it's highly recommended you back up the original .cfg or .ini files which you are going to edit.One wrong move & the game won't start at all.