Should I reinstall NAV 11?

I may have outsmarted myself.

 

Before I installed Snow Leopard I did a complete Symantec uninstall on the Mac side. (I have NAV 11 and the Windows version that I bought as a package last November 1.) Now, as I read the forum, it sounds as if I will need to install it again to get the software updates. 

 

Will reinstalling the year-old version I have on disk cause any problems in Snow Leopard? If so, what should I do?

 

Thanks!!