I am stumped, Blank member.php

[Ntfu2]

My member.php page is comes up blank.

First step to resolve the problem was disable all plugins/products via the config.php file edit.

Problem Solved.

Next step to trouble shoot was to enable them again, and disable them one by one to find the bad one. Never found it with all disabled in the admincp.

So i disable them again via the config.php file (while they are disabled in the admincp) and it works again.

Now out of sheer frustration, i simple remove every single plugin/product except for vBadvanced. And the problem is still there. A blank member.php page.

Now i go to my styles and themes, revert all my templates (since i dont have thing installed now anyway) and its still blank.

Is there any way to check whats causing this problem? I've tried from different computers, disabled mod_security on the server, and just about every thing i can think of before asking for some help!!!!