Same problem here. New to modding (kind of) and I am trying to create a player home formyself. Everything else is working and was easy to learn so far but the lighting is just killing me. Ive tried my gfx settings, update drivers, compability settings, disabling my secondary monitor. Nothing seems to help I also have problems with hiding things like light markers. None of the hide options works. Its getting frustrating. Anyone found a fix? W7 Ultimate Ati HD4870 E: Seems that if you press left mb and drag your mouse over everything while holdin S brings the lighting effect back.