I have downloaded the trial version. 5.5.1. I have installed the TTS engine and have both Unimodem Half Duplex and Unimodem Full Duplex devices installed. Serverscheck still does not see either modem. This is a Windows XP SP1 system. We are looking at purchasing the Pro version but want to be able to use the Voice feature. Any ideas as to what I need to do to resolve this issue?