donsting

I have purchased 2 user licenses for dial dictate and have registered them in the software housed on the dial in PC I built. Problem is that after 14 days the software disables. What am I missing here?? The license states that you can purchase individual licenses without a site license. Did I read it wrong?? Help as I'm getting frustrated. I un/reinstalled the software, registered a user then bumped my date up past 14 days. After restarting the software it says the trial period is up.. No problems with registering the user... Don