Using new installation of TestComplete 10.6 - keep getting Activate license message

I had TestComplete 9.3 installed on a test system, which had a floating license.  I removed 9.3, installed 10.6, and activated a NODE-locked license.  I did get a message indicating the node license activiation was successful.

When I attempted to start 10.6, it keeps coming up with window "Unable to find an activated license".  The first option is to activate the license. When I attempt to use the same license key on the system, I get a failure with a message indicating that license is already installed on the system.  Other options do not seem to apply.  How do I continue to develop/use with 10.6?