Ha, I understand. In conclusion: the site runs on different cookies. On the one hand there is
www.wdwv.net/forum. On the other hand there is wdwv.net/forum. Try it out. Go to wdwv.net/forum (type it in the URL bar, or activate, right click, go to). If you're logged in, log out. Go to
www.wdwv.net/forum. You'll still be logged in.
Likewise, the forum software doesn't recognize
http://wdwv.net/forum as an internal link. That is, it doesn't realize that it's a link leading to this very forum (or a thread in this forum), which is why the link opens in a new tab. Technically, the software is correct, since wdwv.net runs on a different cookie than
www.wdwv.net/forum. It's something about the server configuration.