Forum:Joining Glitch

Well then -__- i played borderlands on my 61 hunter today 25 sept 2010 i joined some1 in the dlc fort knoxx he was level 61 doing circle of duty we were fighting i killed a lancer that was driving in the arena but it shot b4 i killed it so i got wounded then he got wounded somehow then i bled to death i respawn (then the arena ended because some1 died) i immediatly quit because i hate circle of duty and was looking for a crawmerax run but after that i tryd to join but everytime i join it loads like 3-4 seconds and wham returns me to the main screen this happens over and over then i tryd again joining a random level 10-30 person i fully joined finally(he didnt had any DLC i believe) but i didnt want to stay there i left but still everytime i join some1 i crash out even at 30-50 player that dont have DLC and at DLC players? i also tryd rebooting my ps3 but that didnt help either i can hoste but nobody joined i can even singleplayer my DLC's but i cant join anymore WTF is going on!? am i being screwed 3 days just b4 DLC4? D:< Help plz (sorry if its unclear my 2nd post and not used to forums)