WM prob with games

[kang]

hi
i'm a chat addict and i have always some chattng client open, and it happens people message me when i play,like, quake3, which requiert some concentration ;D and thoses messages appear on top of the game, which is _very_ annoying.
I looked into most of the WM i use, ticked that new windows/dialog never raise over the olds ones but it still does for games. (i use mainly waimea and sawfish/gnome)
Any idea ?