speaking of NAV, I just helped my longtime friend download the newer version of Norton System works 2006 which includes NAV 2006 after he ordered/purchased it online a few weeks ago. his computer that now has NAV 2006 uses WinXP pro with SP2. after we downloaded NSW/NAV 2006 and installed it, we had to "activate" it, just like how we "activate" XP using the product activation feature.

btw - Norton Antivirus 2006 requires Win2000 or XP. wont work with Win9x systems. However, the 2005 version is compatible with Win98 & ME.

my personal favorite antivirus app is now PC-Cillin Internet Security suite from Trend Micro. it's not only an antivirus program but it's also an anti-spam, anti-spyware & firewall program. all bundled in one app. sweet!