DraftSight 2015 how to remove "30 day trial... expired" message.

I just installed DraftSight 2015 and no I'm getting the following message every time I run DraftSight.

"Your 30 Day trial of DraftSight Professional has EXPIRED, Buy Now"

Is there a way to remove this message without having to uninstall, clean registry and re-install?

Thanks.

 

M.