Download Intelligence NIS 2010 x32 & x64

Hi all,

 

I have the official release of NIS 2010 installed on my laptop (Vista x32) and home PC (Vista x64).  One thing I've noticed is that when I download a file on my laptop, I get a pop up stating that the file downloaded is safe yet on my home pc I don't get such a pop up.

 

Has this anything to do with one being x32 and the other x64?