If you've been playing Call of Duty: Black Ops on the Playstation 3, odds are that you haven't had a very easy time. Loading screens that freeze, net code that won't play nice and issues with guest players. Amongst other things. Yesterday, Treyarch released a patch supposed to address many of these issues, with the full patch notes available on the game's official forums.
All is not well in CODBLOPS-land, though - as reported by CVG, it seems like some Playstation 3-players are still having issues. Including strange, Xbox 360-related error messages! Seems like Treyarch still have some work to do on their blockbuster title...