Hi 118,
Yes, i have had v31 for a bit now. Space navigator has been working fine...
It could get deep, but we can start with the basics. Without getting into specifics of your setup (well, 1 we will)
The first thing is to make sure your usb hubs have the power settings "off". You can do this from device manager and the properties of each ones power optuons are off (if not just the specific one)
Another, from your description is it sounds like you have "dual video cards?"
Its good with nvidia cards to direct the app to use a specific gpu. Probably imperative with 2!
Your cards driver should have a setting to tick a specific applications properties, then in the application settings, you can sprcify the gpu to use. Maybe set both (bobcad and 3dconnexion) to the same gpu. I dont have dual gpu's to run through that.
After that, i would just talk more about specifics to your cpu. OS and updates. Drivers and "where" updates come from. Net frameworks. Vs redistributable, etc, etc...
Kindof deep, but may not be needed with the first 2 checks...