Tested out my 4CD version of TSL compared to my Steam version last night. Oddly enough, textures with shine don't render correctly on the 4CD version, but render correctly when I play the Steam version (Legacy branch, not the 2015 update). How curious...
Yeah, I saw a screenshot from HassatHunter's Steam page that addressed some missing fog with the Steam Update. Good thing you can still use the old 'LegacyPC' version, prior to the 2015 Update.