PCut / SignCut setup

[lenmcc 0]

Argh.  My hard drive died, and now that my Mac is repaired, I'm struggling to get everything back to the way I had it.  Despite following the setup instructions, Signcut isn't communicating with my plotter.

Computer: MacBook Pro, intel, running OS X.5;

Plotter: PCut CTN630;

Connection: Keyspan adapter;

SignCut setup ("cutter" screen):

Cutter: Refine MH721 (I think this is how I had it set up before.  If this is wrong, I couldn't figure out how to install the CTN630 driver);

Device: /dev/cu...;

Baud: 9600.