Everything works fine until I do the Diplomatic Immunity quest. I am able to talk to the guy in Solitude and give him my gear. However, I cannot get to Delphine. If I go through the Solitude gates the game freezes in the loading screen (just keep scrolling through those messages for as long as I'll leave the PS3 on). If I fast travel to some outdoor location and try to run to the stables where Delphine is, the game flat out freezes at me at some point near the Stables. Is there any way to fix this problem? I would sure like to progress in the story! Thank you in advance.

Have you another save to load ???