Comment 4 for bug 498632

I found that file but I don't get what I'm supposed to do. Should I delete it?

When I open passwd.lock, then the ClamAV app is being launched.

As far as I got it, what is happening when I receive above mentioned error msg is that ClamAV is trying to check updates that I'm downloading/installing. For some reason it's not able to check them for viruses. That's the only effect, though. Otherwise, the update process goes well. Does it make sense? It's fairly possible I'm wrong..