Something new after last night's Steam hotfix:

I haven't had any CTD problems before, but now I get a consistent CTD every time I try to go to the singleplayer Campaign screen to start a new campaign. I can click the "Continue" button and it will load a current game and I can play it fine, but it CTD's every time I try to reach that screen to start a new campaign.

I guess this game goes on the shelf until the next hotfix or patch.