Hi everybody. I have some issues with my Draftsight 2018 SP3 free version activation for Ubuntu 64 bits. I downloaded the installation package and for some reason I can't installed it with the software center of Ubuntu. Then I had to use GDebi to install it, until that all fine, but when I open Draftsight, it only open with no show any message to activate, it just run and nothing more. The real issue comes when you want use Draftsight with no internet connection. It just show a error message and just give me the option to configure proxy, it happens even if you don't shut off your PC, I mean, you close Draftsight and you want use it a while later. It don't run and don't give you the option to activate it, I already look for the mail in Spam section but there isn't anything. What I should do?, I can't work.