Multiplicity won't work after install
I had been using the trial version of Multiplicity, and decided to buy the $19.99 version after only 4 days. It had been working fine in the trial. Now that I own it, I can't connect my secondary computer. In the trial, there was a KVM tab below the Seamless tab. There isn't one now. Is that not there on the cheap version? I've turned off the firewall entirely. No dice.

What do I have wrong? Please help!