http://www.mywhatever.org/mywiki changes to http://64.xxx.xxx.xxx/mywiki in the browser. Also, email notifications have the the IP address instead of the domain name. This is probably due to some config change I made, but I can't find it.
It doesn't happen on pages that are not generated by Mediawiki, so I'm fairly certain it doesn't have anything to do with Apache.
A pointer to the small change needed would be appreciated.
Thanks,
-rex