So, it has been a few weeks after the dawnguard release, and I am experiencing this very annoying issue. My game constantly freezes, once per every 3-4 hours. This happens during loading screens, and during gameplay. The game is installed on my HDD, and I save my game on it aswell.

It happens a great deal to me as well, sorry friend.

I truly believe Bethesda was aware how much trouble DG could cause for people and released it anyway. We're some of the lukcy ones, I guess.

Well, at least I know that its skyrim's fault. I played other games and they worked fine.