Robert, > Subject: [MV] Plantronics DSP-400 and ViaVoice 3.02 Try dictating with the Powerbook charging the battery and battery power alone. Martin Markoe, eMicrophones, Inc. The best microphones for Speech Recognition See us at: http://www.eMicrophones.com/ See, "Key Steps to High Speech Recognition Accuracy for the Mac" at: http://www.emicrophones.com/docDetails.asp?DocumentID=39