Mark Hadwen on the QTO development team, writes:
I figured out what is causing the 3D graphics issue with QTO 2010. As previously known, some graphics cards do not work in 3D mode in QTO with hardware acceleration turned on.
It seems that QTO and Design Review share the same registry switch for the model driver selection. So when you select “Direct3D” as your model driver for Design Review it turns it on for QTO which causes the problem. If “Direct3D” is selected as the View Settings for the model driver in Design Review, Deselecting “Enable Hardware Acceleration” in QTO does not turn hardware acceleration off.
To fix this, open the options dialog for Design Review, in the Model tab, in the View Settings section set the Driver to “OpenGL” or “Software (OpenGL)”.
The next time you open a 3D Dwf in Design review and “Direct3D” is not being used a message appears:
“Direct X Driver Found, Autodesk Design Review has detected the presence of the DirectX graphic drivers on this system. Would you like to switch to DirectX to take advantage of better 3D model performance?”
Select “Do not show this message again” and select the cancel button.
Thanks for the tip, Mark!