Almost 3 months, no one else has experienced this or has any other recommendations?

Hello everyone - I've been trying to figure this out for over a week and I'm at a loss, here is what I have so far.
i-doit v 0.9.9.8-pro on CentOS 5.8 Final, w/Apache 2.2.3, PHP 5.3.13

I've configured LDAP to connect to our AD environment, I have attached the screen shots to our configs for ldap.
I've also attached our Active Directory Mappings,

The user has been created, along with the login information, BUT no login password was entered. and NO group membership added.

In the config.inc.php file I have defined the default group membership for users:
define("C__LDAP__GROUP_IDS",  "15")

so I want users to get assigned ADMIN rights if they have no other groups defined (at least initially for testing purposes)

SO, I try to login this user, rigarcia, and I can see in the log (ldap_debug.txt) that it does indeed try to authenticate:

2012-06-04 18:26:22 ldap: 1: ad-dc4.coh.org (OU=COH,DC=coh,DC=org)
2012-06-04 18:26:22 ldap: –--------------------------------------------------------------------------------------------
2012-06-04 18:26:22 ldap: Creating new ldap-library connection to: ad-dc4.coh.org:389, user: cn=tctl,ou=service accounts,dc=coh,dc=org
2012-06-04 18:26:22 ldap: Connected to ad-dc4.coh.org
2012-06-04 18:26:22 ldap: Searching for username: rigarcia
2012-06-04 18:26:22 ldap: Getting user(s) using filter: (sAMAccountName=rigarcia) in search-path: OU=COH,DC=coh,DC=org
2012-06-04 18:26:22 ldap: Found DN: CN=Garcia, Rick,OU=Users,OU=COH,DC=coh,DC=org. Trying to login with it.
2012-06-04 18:26:22 ldap: Auth successfull (CN=Garcia, Rick,OU=Users,OU=COH,DC=coh,DC=org).

If I try to use the wrong password, I do get an authentication failure:
2012-06-04 17:37:01 ldap: Found DN: CN=Garcia, Rick,OU=Users,OU=COH,DC=coh,DC=org. Trying to login with it.
2012-06-04 17:37:01 ldap: ** Auth failed. LDAP-Result: Invalid credentials
2012-06-04 17:37:01 ldap: ----------------------------------------------------------------------------------------------
2012-06-04 17:37:01 ldap: *** LDAP Auth failed. (false)

So I KNOW the authentication is working.

Why is it I can not login still then with the RIGHT password? I keep getting thrown BACK to the Invalid Username or password prompt when I use the right password?

It never proceeds to ask me for the language or allows me to login? what am I missing now?

Help!

After entering the information to configure the db, step 3, and hitting next, it goes to the next page and the next page is blank.  It never refreshes and the db does not get created.

This problem existed for us when we tried to build 0.9.9-8 from scratch as well.  We had to install 0.9.9-7 from scratch and run the update app for 0.9.9-8.  We would like to do a fresh install though for 0.9.9-9 to assure everything runs smoothly.

This is what our config check returns when we run the installation in the beginning:
Operating System
  Type: Linux OK
  Version: 2.6.18-274.18.1.el5 #1 SMP Thu Feb 9 12:45:44 EST 2012 OK
Webserver
  Version: Apache/2.2.3 (CentOS) OK
  PHP Version: 5.3.13 OK
  PHP Session Extension: Active OK
  PHP MySQL Extension: Active OK
  PHP XML Extension: Active OK
  PHP ZLIB Extension: Active OK
  PHP SimpleXML Extension: Active OK
  PHP Setting "magic_quotes_gpc": Off OK
  PHP cURL Extension: Active - Needed for external web-services OK
  PHP PDO_MySQL Extension: Active OK
Database Access Interface (PHP MySQL Extension)
  Version: 5.5.23 OK

What could be wrong?