New install of 10.2 including uninstall of 10.0. Tried to run the application and received an error message that "Could not connect to an ArcGIS license manager running on host "Not_Set". I was never asked to set any host. Did I miss something important? Should I uninstall and try reinstalling? (I hope not as I'm using a very poor connection and it would take forever!!) I'd appreciate any help.