I have. My original 2005FPW had been running at 100 brightness and is older than the one I just bought, yet much brighter. Even when I drop it to 0 brightness, it's brighter than the "new one" at 100 bright. At work, I asked around and noticed most people run at 75 brightness on their dell displays. SO, not really sure what is the optimal setting. In any case, using the gfx card software I can manually adjust the brightness of the "new" screen, but it kind of washes the picture out. I think I'll just use the "new" screen for auxiliary work and some day down the road upgrade to two new/larger displays. For now, I dropped the brightness of the old/bright display to 0 to make the two screens similar in lighting.