I'm having a glitch in Assassin's Creed 1, and I'm wondering if anyone else has had this glitch and maybe found a workaround. On Assassin's Creed (PS3), Memory Block 4, Jerusalem I finish the investigation I want and go talk to the Bureau guy. The conversation goes on for a bit, then suddenly stops. I'm still stuck in the conversation mode, so I can't leave the room, but no dialogue goes on and I can't progress. This is stopping me from continuing the game, so I was wondering if anyone knew a workaround. Thank you.

did you reload from a save game and try again? Are there any patches for the game that are available for download that you haven't dl'd?

I've reloaded and tried quite a few times, and I'm pretty sure I've patched it all the way because I have constant connection to PSN, so if there were a patch it probably would have informed me of it.