subdomain / seperate account not working

I moved my sites to a new machine last night. My domain, and most of its subdomains, point to the new IP. When I browser to my site, and most of the subdomains, they work properly. There is one account, however, that I'm having problems with.

The subdomain, billing.mydomain.com for instance, is resolving to the correct IP, but when I browse to it, I get a 404 error (Not Found / The requested URL / was not found on this server).

If I go to access the site by IP URL (http://NewIPhere/~billing) it's working perfectly.

This is the only account I'm having problems with, and I'm not sure why. Mail is being received and sent out properly from the domain in question, which confuses me even more.

The other things I don't understand, is why all of the subdomains aren't pointing to the same IP.

 

Ah, there we go. Somehow the sitepath was set to something else.

One other question, if it's not too much...when I restart Apache, I get the following:

[Sat Apr 05 10:43:44 2008] [warn] NameVirtualHost IPHERE:443 has no VirtualHosts
[Sat Apr 05 10:43:44 2008] [warn] NameVirtualHost IPHERE:80 has no VirtualHosts

I've never seen that before...is it something to be concerned about?