Welshjim and Han thanks for your input.
That info re NAV creating a problem for WIndows system restore was new info to me - was not aware of that problem. This has not happened so far to me and I have been able to create a system restore point without any problems.
NAV 2006 has been sastisfactory so far and I take into consideration that Symantec has good knowledegable people trying to keep up with latest viruses etc. My only problem has been the fact that I know in order for it to do its job its going to use up system resources and that got me thinking maybe there is a program equally as good but not so heavy on the horsepower. But when I look at the procedure that is necessary to go through to uninstall NAV it really overwhelms me. So then I take the easy way out and say OK I guess I'm going to stick with what I have.
Budo