thanks for the replys,
In my environment variables I have UGII_3DCONNEXION_LIBRARY = %UGII_BASE_DIR%\ugalliance\vendor\startup\3DxNX.dll
Its the RMB and also the mapped button on my spaceball that no longer work, to get this message , since moving to NX10, from 8 (same m/c, both versions installed) It still works with NX8