For some reason when I am inside a location textures will become pure black as I move the camera around. The Witcher is version 1.5.0.1304. I have these add-ons installed: Flash_Mod_Installer-232.exe, SweetFX_1_5-23364.7z, twmodupdate11.exe, twtexturmod.7z, and witcherhirescharacters.zip. I use RadeonPro to force V-Sync as well. I'm fairly certain other peoples games don't look this bad while inside. Any suggestions would be appreciated thank you.

I changed my SweetFX Preset and that fixed the problem. Has anyone noticed a significant drop in FPS while enabling SweetFX?