[Qt-interest] Embedded Widgets - Blending Artifacts

[Willy P]

Hey,
I'm embedding a widget in an OpenGL scene and getting some strange effects:

http://dl.getdropbox.com/u/147719/Pic-10.png

Transparencies / blending for widgets in 3d scenes have been messed up
for a while so I'm trying to make *every* aspect of every widget
opaque.

Can anybody offer any advice on strategies to deal w/ this bug?  I'm
running OS-X, Qt 4.5.2 and, for this embedded widget, using
QCleanlooksStyle.

Thanks in advance...

-Willy