Using a texquad to cover a window

[Enlil]

Hello,

I was using texquads to blank out a window I made with viz.add(viz.Window) in Vizard 3, but it looks to me like the way texquads work with windows has changed in Vizard 4 (it appears the texquad is in effect behind instead of in front of the window).

So, is there a way to either attach a texquad to a window or is there a better way to fade to black?

Thanks,
Christian