Thanks to you both. I'll add a little more detail. I purchased KVM-PRO and had uninstalled the old version so I was sure to have the latest sw on both machines. I had downloaded the manual and read it before posting my original question. When I installed the new version in the new computer, the Wizard opened as promised and I selected Secondary, then rebooted. I installed the new version on the old computer, the wizard did not open so I was not even given an opportunity to select Primary or Secondary. It's not a connection problem. The wizard does not open.
Any suggestions are greatly appreciated.