I am having a major problem with Dawnguard. While playing the game I was given the option to become a vampire lord. After the tutorial, I found I could not talk to anybody while in my vampire lord form. I assume that this is a normal part of the game. However, whenever I attempt to use the "Revert Form" power and change back into my human form, the game screen freezes. At this point I must use task manager to quit the game.
So far I have disabled all mods and enabled debugging. I also lowered my graphics settings and verified the files through Steam. I tried reverting a previous save and going through the dialogue again, but had the same problem. I tried to take a screenshot, but it did not work. Here is the last several lines of the debug.
[08/04/2012 - 04:13:04PM] VM is freezing...
[08/04/2012 - 04:13:04PM] VM is frozen
[08/04/2012 - 04:13:04PM] Saving game...
[08/04/2012 - 04:13:04PM] VM is thawing...
[08/04/2012 - 04:13:07PM] VAMPIRE: Perks stat = 0
[08/04/2012 - 04:13:14PM] VAMPIRE: Perks stat = 0
[08/04/2012 - 04:13:14PM] VAMPIRE REFLEXES: Spell detected
[08/04/2012 - 04:13:14PM] VAMPIRE MISTFORM: Spell detected
[08/04/2012 - 04:13:14PM] VAMPIRE BATS: Spell detected
[08/04/2012 - 04:13:15PM] RNPC: Periodic update check.
[08/04/2012 - 04:13:17PM] VAMPIRE: Perks stat = 0
[08/04/2012 - 04:13:17PM] VAMPIRE: Revert effect detected
[08/04/2012 - 04:13:17PM] VAMPIRE: Perks stat = 0
[08/04/2012 - 04:13:17PM] Unregistering for Animation Events
[08/04/2012 - 04:13:17PM] VAMPIRE: Player returning to normal.
[08/04/2012 - 04:13:19PM] VAMPIRE: Setting race [Race
I would really like to play as the Vampire Lord, but I need the ability to revert form. Does anyone have any suggestions?