I'm having the same problem as jdrockpb was having but I've found no solution. I've checked boss, number of mods, and my TES5edit files to find that all seems correct. Maybe my ini. files are causing this or I forgot a simple step. I've tried launching skyrim without patches and any of the variant files to still get a CTD on the start screen. Can anybody help please? Thanks
EDIT: So my Dawnguard.esm is corrupt? In Wrye Bash my Dawnguard.esm file is full red all the way across. Does that mean I need a re-install?