Was it working prior to v21? Mine is still working after the update.
Do you have the 3DConnexion software installed, or are you relying on the Windows built in drivers?
I have found in the past that a full uninstall (with Revo Uninstaller) and a new install works. They update their software at fairly regular intervals, and sometimes the updates can be a bit problematic.I tried to activate my 3d mouse on my desktop, but it will not work. Anyone?
i restarted my desktop after installing V21