Thanks for replying Robert.

I am using the latest version of OSG: 2.0, released on the 15th of June.

The two cards in question are a 6600GT and an 8800GTX, both of which are
using the latest stable (not beta) drivers from Nvidia.  My first thought
was a driver issue too, except that I can't get any other OpenGL programs to
fail.  Is there a way I can identify this kind of issue?

As far as I can tell, pretty much all of the examples can or will fail at
some point.  Specifically, the osgsimulator example runs very poorly on the
6600GT (low framerate, globe reflection flickers and is backed by a black
rectangle) and bringing text up on the screen, such as by pressing H in
osgsimulator, seems to encourage the error to happen more often.

Thoughts?

Chris Davoren.
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