'Extra' index.php

[DTTO]

I'm sure this has to be a silly mistake or an easy fix; but I'm running on about 8 hours sleep in the last 5 days, and am getting over a serious stomach virus, so I can't think clearly right now. LOL

Anyways...am in the process of transferring a vBulletin board to the new server. Everything's gone swimmingly. HOWEVER...for some reason, in the last day or two, I've noticed that I can click on darn near any link on the vBulletin page and it just redirects to http://xxx.xxx.xxx.xxx/forums/index.php (where the x's obviously represent my server's IP - the DNS redirection of our actual website URL to that server has not yet been done.

I finally realized that what was happening (or at least it looks like it), is that the 'base' URL seems to be the entire URL above. For instance, if I'm on the server's vBulletin installation, and click on, say, my member settings link, it directs me to:

http://xxx.xxx.xxx.xxx/forums/index.php/member.php

In short, it seems to be inserting that 'index.php' in there regardless of what I do.

It does that with ANY link I click on. I don't believe this is a vBulletin thing at all; rather, it's probably a DNS thing or something similar. But again, I'm having problems thinking straight. Any thoughts?