Hi,

I was going to use draftsight today but I tried to open a file and it stated "Product not licensed or expired" I was using the product just perfectly before today. I searched the forum and found the activation overview document. Apparently I need to activate it every year. Didn't know that... I don't know how to activate it anymore. I still have the email they sent me for activation, But when I click the activate button it says "error" and sends me to this forum.

I use Ubuntu 12.04, by the way. 

If you can give me some advice on how to proceed I'll be really grateful. Thanks