I am trying to activate the free version of DraftSight V1R5.1 x64 for Windows 7. I am connected to the internet and click on the link in the email sent to me to complete the activation process, I see a message stating the my activation was successful. Then I receive an welcome email saying that I have been registered.However, each time I launch DraftSight it tells me to check email to confirm activation.What's wrong?