I've searched this thread with the word 'brightness', but with 20 page, I'm not going to read all result.
I've replaced my RS15 with RS40, now in dark scene I can see a dim lighted border outside of the screen, 4 inches at the bottom, 2 inches side, not at top. This is a ceiling installation, I've never noticed this with the RS15.
Is this normal? If so how can I get rid of it, if possible. Sorry if this was answered in the 200 pages of this thread. Sorry also...