Color distorted after quitting game

For the past several months, many times when I quit WoW playing, desktop colors are distorted (turned into kind of purple and brownish colors).  I have to do a quick restart and quit of the game to get colors back to normal.


Though it could be a problem of WoW program itself, but I strongly suspect that it's the new driver that is causing the problem. Is this a known problem? Are there any workarounds?