When I tried to run Norton help, I received the following message: For security reasons this file has been temporarily blocked from executing: file:c:\winnt\help\nav.chm ""Risk Assessment: Medium *> Suspicious strings detected. WormGuard has found a few strings in this file that are suspicious. *> Contains suspicious string: virus LINE=.../NAV_trouble9.html.§Ârœ|./NAV_virus_found.html. ]../NAV_virus_found11.html.¢ñ´7./NAV_virus_found1... Is this a virus or a false aarm? just before this occurred, I was live with Gateway tech support who accessed my computer (does this mean my windows fire wall was disabled temporarily?? and a virus got inserted by someone else). stopped some start up items (may be I stopped some Norton files too) Later I viewed my e-mails using mail washer (so I dont think the new e-mails got on to my computer yet) and then processed mail (none downloaded as all of them were marked fro deletion -forgot if they were also marked fro bouncing)- but Norton showed a warning that it can not that there were errors - probably a virus was trying to modify the Norton security. What is this file nav.chm? Do you think I have a virus?