It probably happened when I was messing with ScriptDragon, trying to update it... Which it never did. First I couldn't get the game to start at all, as ScriptDragon kept complaining about my game version not being supported (even though I had downloaded and attempted to install the latest update)... Then, once I purged everything that had ANYTHING to do with ScriptDragon out of pure rage, I tried to star Skyrim up without ScriptDragon.... Everything looked good, until it got to the Bethedsa logo. It crashed without so much as an error message of any sort at the point where the main menu is suppose to appear..... And kept doing so. So I deleted all of the local game content and re-installed it. Same problem. Tried to install ScriptDragon, as I never had any problems until I tried to update it. "Your game version is not supported!" So either with or without ScriptDragon, I can't get past the launcher. I've logged 234 hours on this thing, so it's by no means new. I DO NOT have Dawnguard (yet), so I know that's not causing any problems... I always keep it on Auto Update, so I shouldn't be missing any of those. I probably screwed up somewhere, but where, I'm having a hard time figuring out.

Is anyone having this problem? If so, what methods have you tried using to repair it?

http://www.gamesas.com/topic/1355668-rel-script-dragon-topic-6/

And before you go in there and ask the same question, you need to update it.