+ AA6YQ comments below
I'm sure I'm going to be embarrassed when I get this worked out, but at the moment I'm at a loss. The Commander's spectrum waterfall display has quit working. The window opens but it is blank, nothing showing except a wite area at the top and black at the bottom. The frequency window is blank as well but the band change buttons work. I've been using Win4Icom but I think Commander was working normally before. Their waterfall display works fine as does WSJT-X. Everything else seems to be working. Commander displays the Main and Sub VFOs and sends commands to the radio. I'm sure there is something in the interplay of programs that I'm missing but it's not apparent. Any hints would be appreciated.
+ Please connect Commander directly to the COM port associated with your transceiver's USB CI-V port. Can you change your transceiver's frequency and mode from Commander's Main window? Does Commander's Main window track frequency and mode changes made from you transceiver's front panel?