Hi Ben> ... it occurred to me that there are two
>"chat" clients that we offer. If the one you used listed
>several buttons along the bottom of the application (the
>one launched by the Launch button), then that's the one we meant for you to try.
Yes, the chat window I was using has 5 buttons along the bottom, just beneath the narrow area where I type my messages, giving the voice frequencies for Unicom, Ground, Tower, Artcc and VoiceCom.
Of course, I can't confirm at this stage whether the messages I send are *actually* being sent. All I know, being new to this technology, is that the messages are appearing in the chat window.
Paul