Michael, >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> So now my question is, should I get a different hub? Or perhaps connect the hub to the G4 and the keyboard to the hub? Or ...? >>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Before you do anything else, try the Andrea USB sound pod and Buddy Gooseneck microphone in one of the USB ports. If the microphone now works satisfactorily then you know the problem is the hub. Martin Markoe, eMicrophones, Inc. The best microphones for Speech Recognition See us at: http://www.eMicrophones.com/index.asp See, "Key Steps to High Speech Recognition Accuracy for the Mac" at: http://www.emicrophones.com/docDetails.asp?DocumentID=39