Is anyone else experience game freezes on the main map? The game is not crashing to desktop. The screen just freezes and does not recover. Music still plays, and I can even click buttons if I know where they are in the UI, though no windows pop up. When this happens, the only option is to CTRL-ALT-DEL and end the application in Task Manager. I can then reload the last save game and play several (sometimes a couple dozen) turns until the next freeze--no pattern to the freezes I can point to yet. No debug file is created. I don't know what, if any, files support could use.