A lot of people "file check" and they check pol not xi
You did actually pick 11 from the drop down menu, just to verify. Cause like, we know exactly why the game crashes, and its having the wrong dat file for the quest menu and there aren't many reasons it can be the wrong file.
Best to delete a random dat prior to check files too, as far as I know it won't checksum all files in the install unless you do. First scan is for missing or outdated files, if it hits anything they all get checked again.