Unfortunately I can't point to any one thing and say it was the cause of my problem, but I can recount the events leading up to it (though I may forget some things and leave them out).
-I got the passport from the King.
-Went to the gate, the security bots allowed me to enter The Strip.
-Once inside, I found Macgreggor (or whatever his name was who owed the brother and sister who run the bar money), and killed him.
-I looted his body, took his caps, hat and probably a few other items, and brought them back to the brother and sister to complete that quest.
-I tried to return to The Strip but after the loading was finished my X-box froze on a black screen. Then, when I tried to "continue" it says the save file is corrupt. This occurs every time I try to enter The Strip.
That's the best account I can give. Boone and Rex were with me for pretty much all of this.
Please don't recommend that I revert to another save, because I don't have one. Probably a stupid mistake, silly me expecting the game I paid 70 bucks for to be the finished product.
