Well, if you try the software renderer, we can probably verify that theory. It will be very slow (you will not like it probably), but if it works there then it's probably something like that (which would be useful to know.)
If it does the same thing there as with OpenGL, the issue is probably somewhere else.
-[Unknown]
If it does the same thing there as with OpenGL, the issue is probably somewhere else.
-[Unknown]

