Multisite URLs Wrong

On two of my wordpress 3.0 installs I have the same issue when trying to create a subdomain using the new multisite feature. I am sure that I did something a little wrong during the install, but cannot figure it out myself. Any help would be appreciated.

Here is the issue – When I create a new site from the dashboard it makes a url like this:
http://subdmain.domain.comdomain

I cannot figure out how to fix this. Thanks in advance! 🙂