So we have 1 network license of Revit which we upgraded from 2011 to 2012. In the license manager it looks like there is a license for 2011 and 1 for 2012, but if I open 2011 then the license manager won't find the license for 2012. For our stand alone license we can run both versions at the same time. Shouldn't I be able to do that with the networked versions as well. Sorry I don't have all the specifics as our IT guy set up the license file.