Need Help with Color Command / Color Power

Looking for help with a new issue that just cropped up with our High
End Color Commands. The Color Power Unit seems to boot fine -
displaying what the manual says it should (HES, blink off, HES again, then COLR - but then refuses to respond. We can't get into the menu and hitting the menu button for less than the required time to activate the menu does NOT bring up the "hold" message one usually gets.

The Color Command units don't do their initial power up clicking/homing and display a pale lavender color instead of the normal white light when no color channels are up on the control board.

I do have terminators on the last Color Commands of each chain (using both 4 pin outputs). I don't have the DMX line terminated, but have never had to do that before.

Anyone run into this before or have suggestions? I'm calling HES
Monday morning, but also have a memorial service for a faculty
colleague to deal with, so any leads before then would be appreciated.

Thanks.
Ethan
Bloomsburg University
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