Well, that was a disappointingly short beta period. Is your version of Skyrim now 1.7.7.0? That was the last beta patch, and I haven't downloaded anything additional for Skyrim yet today, which suggests that the public release is, again, basically just a public beta.
I'm willing to wait for Dawnguard. What I'd like is the dang Companions' maintenance script error fixed and my alt-tabbing working again.
Edit:
This looks new
http://cloud-2.steampowered.com/ugc/559822450905680968/61B1C0BAFE79514E604ED6507D52AC843AC122B6/
Never seen that, not even in the beta. However it looks like one of several mods which allow you to make dragonbone weapons. If you're using those, that's the likely cause. AFAIK 1.7 adds no new features,
and Dawnguard doesn't add dragonbone weapons either.Correction: Dawnguard does add dragonbone weapons. Still have yet to see this loading screen in my copy of the game however, so I still suspect mods in this instance.