http://bugs.winehq.org/show_bug.cgi?id=6109
------- Additional Comments From the3dfxdude@gmail.com 2006-31-08 00:13 ------- I suppose that refresh rate changes could be disabled for virtual desktop. It needs to be confirmed though.
The brighter screen is probably from gamma changes, and probably should be left alone. Adjust it in-game if it's too annoying.
I recommend to use the -w switch to Diablo II to use the game's actual windowed mode. Can be used without virtual desktop.