SVCHosting1

This is what we have tried on many of the domains.

Renamed all plugins & themes folders etc….to see if anything was conflicting
(which we knew there wasn’t ,the problem was far to wide spread).

Checked every php file on several of the domains,found no spaces,
or no malicious code of any sort (looked through themes/plugins etc.. ).

Deleted wp-admin & replaced with a fresh version.
Deleted wp-includes & replaced with a fresh version.

Checked all error logs for each domain…every domain gave us this same type of error
in different variations/lines.
[client] PHP Warning: Cannot modify header information – headers
already sent by (output started at
/wp-login.php:96) in
/wp-includes/pluggable.php on line 701,

Replaced .htacess on every domain with a fresh version.

Looked in php admin for anything out of the ordinary and found nothing.

Added in wp-config.php define(‘WP_MEMORY_LIMIT’, ’64M’);

Rebooted all servers.

Even tried a few other things….

All these clients sites worked fine until yesterday and then all
stopped working at once on different servers.

The only domains that are effected are running Version 3.0.1…..all other
versions clients our clients are using are working fine.

Every site is also running different themes & plugins etc…some
tube sites,some news sites etc…

What would cause this?
We have been working on this for 30+ hours straight and nothing we have tried has worked…

Does anyone know of any other forums where we can get real time support for this issue?

Also index.php (Domain.com/index.php) also show up blank on all domains.
Some clients are claiming that wasn’t the case before this.

Anyone have any ideas?
We are almost 26 hours into this without any results what-so-ever and still do not have the slightest clue of what it could be.
Plenty of PO’d clients, some even mid level media outlets in Europe we are hosting.

Where can we get support for this issue?
This obviously isn’t the place.
How do I contact the developers the engineered this software,by phone?

This is all that the error logs are showing us….

Same on each domain we have checked.

[client] PHP Warning: Cannot modify header information – headers
already sent by (output started at
/wp-login.php:96) in
/wp-includes/pluggable.php on line 701,

Anyone have any idea what could be going on?
Have tried everything on this page.
http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F

Nothing seems to work.
The wp-admin login panel is still blank on all the sites.
Not sure what else we can do…..
Does anyone know anywhere I can go to get support for this matter?