[PyKDE] QButton/QGridLayout woes

[Hoka "ME" Tichenci]

I'm having an odd issue with Windows PyQt 3.14.1 Educational, the code is 
supposed to dynamically add/remove buttons when called from a multithreaded 
application. On Linux (PyQt 3.13 qt 3.3.4) the code runs fine, but on 
Windows I get assert problems in a rather odd spot.

The code is here (bgrid is a QGridLayout, bg_projectors is a QButtonGroup):
print "adding projector rnode: %s" % rnode.getName()
attrs = rnode.getAttributes()
print "xpos: %s ypos: %s" % (attrs["xpos"],attrs["ypos"])
tmp = QPushButton(self.bg_projectors,"yes")
tmp.setText(rnode.getName())
print "qpushbutton built"
self.bgrid.addWidget(tmp,attrs["ypos"],attrs["xpos"])
print "widget added"
tmp.show()			
print "Done adding projector!"

However, when run I get this output:

adding projector rnode: Projector: BigOne
xpos: 1 ypos: 1
qpushbutton built
projector is off
widget added
Done adding projector!
ASSERT: "src_dc && dst_dc" in kernel\qpaintdevice_win.cpp (388)

What's odd is that the ASSERT failure is at the end, after the method 
should be done and printed its last statement. Furthermore, if I make a 
QWarningBox or other similar piece of code pauses the system after 
tmp.show() is called, the QButton can be seen in the background, after the 
box is closed the button disappears, but oddly enough no ASSERT is thrown. 
This may not be the right way to do something like this, and if it isn't 
correct me, but I'm at a lost and Google didn't return anything worthwhile.

Thanks for your time,
-Hoka