Board Thread:Skyrim/@comment-11215761-20130624223920

I've made a post about this before, but none of the suggestions worked, and I REALLY want to continue my Dawnguard quest. So here's the bug: When I first go to castle Volkihar with Serana, the watchman opens the gate, and I enter the doors, and that's when it crashes. This is posted in the Dawnguard quest page, but no fix is given. I've redownloaded Dawnguard, and even Skyrim itself. I've also verified my game chache, becuase I'm playing on PC. Can anybody help? This is really a big pain. 