I'm surprised at the level (or lack of) of exterior lighting brightness with the 767.

Both upper and lower beacons are basically non existent and I have to spend what seems like minutes just to see if they are on. Wingtip navigation lights are slightly better but not much, the portside (red) is only visible if the exterior view is panned into a particular position so most of the time it's invisible, the starboard light is visible but very dim. The strobes are fine as are the white navigation lights. Landing Lights, Taxi light, Turnoff lights, Tail illumination and cabin lights are all great, as is interior lighting.

I am using REX2 and I'm wondering if this might be the cause. Can I revert to CS standard lighting scheme while still using REX?