Hi Robert, thanks for the quick response,

My point is that enabling GL3 and then using a driver that doesn't support gl 
buffers causes a null pointer access, to me this is a bug. If it is valid to 
use buffer objects when gl3 is enabled then bufferobject needs to do something 
other than what is does currently.

I guess I am not clear on what enabling gl3 is meant to do, is this meant to 
force the use of it and us therefore invalid to build osg that way if it is 
going to be run on a machine that doesn't support it? I didn't initially set up 
the buld of osg - I am just tracking down why our app was crashing. So as far 
as that goes I am OK, I'll just do as you say and rebuild osg with the 
defaults. 

Thank you!

Cheers,
Barney

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