Hi cadlad,

Here is one troubleshooting technique that has worked in the past for a 3D Space Navigator mouse to  be compatible with Autodesk products:

Uninstall both mouse drivers from the control panel 

Reboot your computer

Reinstall the latest drivers from the 3D Spacemouse vendor

If my post answers your question, please click the "Accept as Solution" button. This helps everyone find answers more quickly.

Jarrett Porter

Technical Support Specialist