Hello, I am tech teacher in a Spanish high school.  I have been using Draftsight for some years now. 

Lately the 32 bits linux version has stopped working.  I have change my OS to Ubuntu 64 bits and I have installed Draftsight without any kind of problem.

The problem comes when I send the activation order.  I don't receive any kind of email in any of the several email addresses i have tried.  Can you tell where is the problem?I will thank you that very much.Thank you