I have successfully used DraftSight in my work at a local university.  I am now trying to install it at home (Windows 7 & Firefox), but I am unable to activate it.  I have followed every instruction (including the DraftSight Activation Guide) with no success.  Draftsight is listed in my Norton firewall rules for allow.  Tried two different emails, no boxes checked in network settings for lan connection.  I fill out the activation box; it immediately goes away with no error message or any other message and leaves me with DraftSight open and ready to go - but still needing activation when I open it again.  I would really like to use Draftsight, but it seems impossible at this point.  Any suggestions or help would be extremely welcome!  Jim