For anyone having the same shadow issue as me with ati cards (R3870 here), I believe I may have found a solution... not the best but i no longer have crazy shadows or random texture lines all over the place. I didn't have to uninstall any mods whatsoever, and at the same time i dont use any ENB series shaders... if that helps. I used a d3d9.dll file from the newvegasnexus and placed it in my skyrim game folder (where your d3d9.dll file usually is, just in case copy that bad boy for backup). My graphics adapter now says 8800gs, but i just set my settings accordingly and everything is awesome. Shadows on grass, correct lighting, and of course...all of the lovely new killmoves. Here's a link to the site and download. http://newvegas.nexusmods.com/downloads/file.php?id=34970 P.S. I also got about a 12 fps gain from this! P.P.S. Dont use the manager, manually download.