mmn, this happend to me when my friend thought it would be a good idea to install a ad-on(extended invo) and I had that problem with the passworded games... if you'v d/led ANY ad-ons, then put them a new folder, or summin, but if not... try,... uh reinstalling AGEN, with you'v probly done allready like 3times or so...eh..
sry