Unfortunately that's a known issue we weren't able to fix. We moved to a new version of the game engine for CSD 3 that solved the problem, but yeah we could never pin down that bug for CSD 2 for some users. I'm sorry. :(
Thank you for the reply! If it helps any, after I exited the game and booted it back up with the full screen setting already in place I didn't encounter any further problems.