John,

I had the NAV on CD, which I had bought. I could install NAV but then it would not allow me to update the virus definitions. I could download the definitions but not install them into NAV, so I was stuck. My hubby tried uninstalling the older version of NAV, uninstalling and reinstalling the new NAV, etc etc. Nothing worked.

I do get the Windows upgrades and install them but I shied off putting the WinXP Service Pack 1 back on again, so I probably never did install it.

Helen