Are you sure you want COM port 2? Mine has always used COM Port 1.
Also, make sure that nothing else is using that COM port at the time. For exaple, if you are currently connected to the RioCar via the serial cable.
All you should have to do is paste your logos into the editor (or make one in the editor from scratch), select you COM Port (pull down menu from "File"), select your player type (this isn't critial), and finally "send to RioCar on Com Port X". Make sure the RioCar's power is plugged in prior to hitting "send" (as opposed to applying software updates were you want the power OFF prior to applying the update.)
Finally, RioCar and empeg are not "modes" per se. Either will work. All it does is toggle between either the empeg penguin logo or the Rio Digital Audio logo on your player.
Hope this helps!
(I have a feeling that I am going to click "Continue" and Tony will have beat me to this!)
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Brad B.