When I miniminze the game and go back to maximize it, the game's colors become jubmled and very annoying.
Well, be thankful that it even works...in Dark Age of Camelot Alt-Tabbing exits the game... I think just pressing Esc, then going back to the game fixes that.
I usually use the windows sign + d and it seems to work fine for me. And i am running it in Windows XP. That might change something, but I doubt it.