LDAP to Windows AD

Hi,

I'm attempting to configure LDAP to windows AD for an additional untrusted domain we need to authenticate.  Running Websphere on windows.  BOXI 3.1.

My parameters are similar to below:

DC.remotedomain.root:389

DC=remotedomain,DC=root

Dn=MyAccountInBothDomainsWithSamePWD

I get the 'internal error has occurred with secLDAP plugin' error.

I've tested binding with the user from the server using ldp.exe and that works fine.

Any suggestions?

thanks,

Sam