Forum:Waters of Life Freezing

I'm on Waters of Life quest and just turned on the mainframe and talked to Dad on the intercom telling me to go back up to the museum level. Every time though I go to the door that goes back to the Jefferson Memorial and Gift Shop, the game freezes when it's loading. The clock on the loading screen even freezes in the exact same spot. It's the only saved game I have so I can't go back. I've even tried not starting up the mainframe and just leaving and it still freezes. I'm on an Xbox360.

Any help?

-This has happened to me several times during this quest. Sometimes I'll reload and get a little farther, only to have it freeze on me again. It is becoming very annoying because I can't go on with the main quest. I'm on an Xbox 360 also.