Hi Ron,
Here are the first thoughts that come to mind re your 2nd PP:
1) Is the 2nd port enabled in the mach config port & Pins ?
If you're using the port, I'd guess yes. if the a PP is not enabled in mach, MSM greys out the port's pins on the PP driver page.
2) Is the 2nd PP set up with "pins 2-9 as inputs" checked in config ports&Pins?
MSM only handles the 2nd port display when the port is set up as "input". I'd need to go look at the code, I can't remember off the top of my head if MSM also greys out the pins for PP2 if it is set as output. In any case, the 2nd PP display panel LED pin layout corresponds to the input case. (having the 2nd PP panel visually handle the "output" case was not implemented in the beta).
Dave