So I was playing today, haven't made any mod changes in several days and haven't had any issues on this install at all. I was in Anvil getting Fighter's Guild quests and everything was fine. I then fast traveled back to Imperial City, turned around, and saw this. Not only does it look terrible but it makes my video card heat up like crazy. I didn't change any settings and can't for the life of me figure out what's causing it. I've tried toying with settings and the only thing that gets rid of it is disabling Distant LOD completely. I'm currently 30+ hours into this game and haven't had any issues up to this point, all major mods have been installed since day one and the only thing's I've installed since are armor/weapons/other trivial stuff. I haven't actually made any changes to settings, mods, load order, or anything else in three days though.
This link is a screenshot showing what's going on. http://home.swbell.net/raolinx/distantlod.jpg
Thanks for any help, would be nice to be able to see things again.