Apache is running; however, it reports that it is not, and it will not restart.

# /etc/init.d/httpd status
httpd.worker is stopped

# /usr/sbin/lsof -iTCP:80 
COMMAND    PID   USER   FD   TYPE DEVICE SIZE NODE NAME
httpd.wor 1169   root    3u  IPv6   2974       TCP *:http (LISTEN)
httpd.wor 1211 daemon    3u  IPv6   2974       TCP *:http (LISTEN)
httpd.wor 1213 daemon    3u  IPv6   2974       TCP *:http (LISTEN)
httpd.wor 1215 daemon    3u  IPv6   2974       TCP *:http (LISTEN)
httpd.wor 1352 daemon    3u  IPv6   2974       TCP *:http (LISTEN)

#/etc/init.d/httpd restart
Stopping httpd:                                            [FAILED]
Starting httpd: [Wed Mar 24 10:33:51 2010] [warn] module proxy_ajp_module is already loaded, skipping
(98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
                                                           [FAILED]

OS: Linux DISTRO: CENTOS 5
Restarting the server didn't help, nor did killing apache and starting it.

Any idea what is causing this inconsistency?