Does this happen if you roll back to, say, 2.3.6?
Just to be clear, here's what a full clean re-install involves:
- move any valued save games elsewhere
- "delete local content" in Steam-CK2
- manually delete all files and folders left under Steam/SteamApps/common/CK2 AND Documents/Paradox/CK2
- re-install game in Steam, run a Steam Verify when done.
- start the game with no mods active and test
IF that somehow doesn't help
DXDIAG is a program you run from a command prompt or the Windows start menu 'run' dialog box (or 'search programs' in Windows 7). After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.
Please attach your Documents/CK2/settings.txt. From your Documents/Paradox/CK2/logs/ directory, post system.log . What version # and checksum do you see a/ in the launcher and b/ in the main game menu?
