FLEXlm error: invalid returned data from license server (12)
Program not run.
You are running an old version of FLEXlm. You must run the most recent version of FLEXlm.
Verify the version of the FLEXlm license manager. If it is not version 7.0d (distributed with ArcGIS 8.1) you will need to reinstall the license manager.