I am reporting same problem:
versoning on my control panel:
Phidget21 - Version 2.1.8 - Built Jan 31 2012
Phiget21.NET Version 2.1.8.91

My PhidgetSBC turns up in the Bonjor(tab), but double clic does not lanc a new GUI, to control IF-kit in my SBC

Using win7 64 bit