Unity Compiz Close Window effect does nothing on window close

I have Ubuntu 11.04 64 bit and I'm using Unity, I decided to start using the pretty Compiz effects, and they do work, when I open a window, the open window effect works, same with menus, tool tips, etc., and they work with the close window effects too, the tool tips and menus and whatnot burst into flames when they disappear (which is my closing effect)

However when I close an actual window, like Firefox, Nautilus, or another full window, it just closes normal, no flames, and like I said, the other effects are working.

When I minimise windows the effects work, when I open them, it's just when I close them, and like I said the closing effects DO work on menus, tool tips, etc., so it has nothing to do with the effects settings there.

Any help is greatly appreciated, I want my windows to BURN!