I'm not sure if this problem is relevant since 2 updates have been released since my version, but here is the problem, just in case it is relevant.  I have eDrawings 2014 sp4 ver. 14.4.0.105/ 14.4.105, installed 9-24-14.  When I check for updates (Help menu, Check for Updates), I get "You are running the latest version of eDrawings."