Hello, I'm trying to install draftsight behind our microsoft isa 2006 proxy server.  We keep getting the error message:  Activation Server not available...however when we add *.draftsight.com into our URL set, it still fails.  We allow full http and https access, however it's still not allowing activation through.  I've read through your activation and installation guide but it doesn't seem to apply to this situation.  Any help would be appreciated.