Flex Builder 4.5 Premium license not working for automation - anything else to try?

So I'm getting the message when I try to record/run a test that the "License not present.  With the trial verison only limited replays are allowed."  I have a valid license key for Flash Builder 4.5 premium edition.  I have read many forums on this subject but none of them help me.  I compile my project using Flash Builder 4.5, 4.5, and an ant script invoking mxmlc.  I have modified my flex-config.xml to include "flexbuilder4", "flexbuilder45", and my given serial number with and without dashes (and other combinations).  I do not have a license.properties file.  I'm not sure what else I can do.  I have already reinstalled Flash Builder 4.5.  I am now trying Flash Builder 6 with the same results.