Can't seem to run Apache 2.2 on Ubuntu 10.10 (Maverick Meerkat)

Here's my error message when I run sudo apachectl start:

(98)Address already in use: make_sock: could not bind to address 127.0.0.1:80
no listening sockets available, shutting down
Unable to open logs
Action 'start' failed.
The Apache error log may have more information.
myUser@myMachine:/etc
$ sudo apachectl stop
httpd (no pid file) not running

I'm brand new to Ubuntu (and Linux) and downloaded Apache 2.2 (worker) through Synaptic. I found a httpd.conf flavor I liked and am using it.