Apache refusing to listen 81

[Adam McCarthy]

I am trying to tell Apache2 to listen on port 81
with
Listen *:81

Even if I comment out Listen:80 it still listens on 80.

After starting Apache, telnet 127.0.0.1 81 fails with Connection Refused.

My listen is
Listen *:80
Listen *:81

I have no firewall on the machine. No errors in httpd-error.log.

Thanks in advanced for any inconvience.

--
Microsoft sent me an email stating.

"We have been informed that you have 10 machines, in which only two
are running Windows. If this does not change, we will contact your ISP
and have you shutdown. Thank you, and we apoligize for any
inconvience."