Ubuntu and mod_perl

I tried to incorporate suggestions I've received. After restarting apache2, this is what happened:


tomkane@sfq:~$ /etc/init.d/apache2 start
 * Starting web server apache2
[Tue May 17 20:12:34 2011] [warn] module perl_module is already loaded, skipping
(13)Permission denied: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
                                                     [fail


Now apache2 won't even start. It's not as if my network address is gone because I see it's still there at boot time. I'm going a little daft now. It's not as if I haven't seen a message like this before, but I've forgotten what to do about it. Any suggestions?

Once again, I want to thank everyone for their suggestions.

Tom