if you have been getting crashes with the gray screen like i have in the strip because of that twin quest in freeside (someone else on here said that, but thats when i started having the crashes) and what not i found a temporary answer until a better patch comes out. like if i try to enter the strip with the patch on it crashes. so what i do is clear my cache in my memory from dashboard. then im able to enter the strip, but then it then crashes instead when i try to leave a casino. so i have to go back out and reinstall the patch to leave casinos. thats kind of a pain, but its a lot better than not being able to complete the main quest and waiting forever for another patch. i hope this helps anyone.