everytime i join a game or advance to a new difficulty or act my screen dims, i have tried changing gamma back and forth everytime i go into a game this works but has cause alot of irritation. lmk if anyone has had this problem/knows how to fix thanks

The only two solutions for your issue are:

• Run Diablo 2 in window mode
• Wait for the gamma problem to disappear For some people, the issue seemed to "fix itself"

Maybe try to launch the video test. Never saw the problem before.

i usually change from window to full alot maybe which has caused this but in window its fine just as soon as i go back to full screen it dims