Just hooked my my new 6600. Turned the radio on, started SmartSDR, followed the instructions. First thing that happens is a widget not shown in the documentation comes up. It says, "SmartSDR CAT," and has info about a serial port and a TCP port. No idea what to do now.
It's easier to tell the icons apart by the letters. SmartSDR says SDR, DAX says DAX, and CAT says CAT. I did start the correct program. It just wouldn't connect. Turning everything of and rebooting a few times seems to have fixed it, and everything seems to be operating correctly now.