QUOTE(LFact @ Aug 6 2008, 08:28 AM)

After installing some mods(even official DLCs), 'Crash on Exit' becomes pretty normal. If you change some settings, before exit the game, open console by pressing '~'(which is left of '1'), type 'saveini'. It will force to save changed configurations to your Oblivion.ini.
hey! that's what I was going to say!