Ha I know which author you mean. It is unlikely to be connected directly to the texture mods. You could check their pages and see if anyone else mentions it. Depending on your graphics card its possible your using to much VRAM. Could be your load order. If your using LOOT its great but you will still need to correct a few mods. What I would definitely use if your not already is SEE Fixes. Fantastic mod, makes a massive difference in game.