You'd figure after farting around with the software for as many years as I have, that I'd be able to easily debug this myself!
I'm doing a fresh install on a brand new spankin server. I'm having the typical can access the admin section, but when vb3 integration is turned on, I'm unable to access the main index.php page.
I've been over the server path again and again. Even cut and pasted straight from the phpinfo adding the appropriate end tags for forums and photopost.
The site is www.campgaea.org/forums/
and photopost is meant to come up at www.campgaea.org/forums/photopost
Straight from the vbulletin admin panel link to view phpinfo shows:
and from config-int.php
$vbpath = "/var/www/campgaea/html/forums";
$pppath = "/var/www/campgaea/html/forums/photopost";
The only thing I can think of is that some option on the server is not enabled. That is causing the conflict.
This is a fresh new server we have fired up.