3D connexxion button preset lost after restarting SolidWorks, message: "<unavailable: name of key>"

Anyone ever experienced the problem with a 3D Connexxion mouse that the defined keys not are kept in the settings? The short keys can be defined in the 3D Connexxion properties Control panel. If the key setting are defined during a SolidWorks session the work flawless.

But when SolidWorks is restarted al the settings are lost an the is a message: "<unavailable: name of key>"

See the picture below:

Anyone an idea?