Installing new version of NIS for Mac didn't reset expiration date...

I previously had NIS on my Macbook. I was receiving a "Your subscription will expire on 8/6/2010" message. I obtained a new copy of NIS. Before installing the new version, I went to the Applications folder and used the Symantec Uninstall utility. I rebooted the Mac. Then I installed NIS using the new CD. After rebooting and applying the updates, I am still getting the popup that says my subscription will expire on 8/6/2010. Please let me know how I can get the correct date to appear... 7/13/2011. Thanks!