Deleting my beta folder and reapplying beta patch build 93965 works for me as well! Beta folder: ArmA 2 Operation Arrowhead\Expansion\beta + http://www.arma2.com/beta-patch.php/
Oh well, I guess I'll better be getting myself another copy of the game in order to continue alpha testing. ;) Why do I always have to develop such high passion for brilliant video games? :blush: