NIS 2011 Scan Facebook Wall Feature

I just ran a scan facebook wall scan with NIS 2011 for the first time and everything was ok,but at the top of the page a message reads

 

" your account is not currently protected with Norton Auto-Scan" and then gives me a button to click on to enable auto-scan.

 

My question is, does that mean my facebook account is not protected with auto-scan or does it mean my whole computer running NIS 2011is not protected with auto-scan??

 

if it means just my facebook wall is not protected, when I click on enable will it scan all the time and send me results or how does it work?

Thanks Kevin