Can you be more specific than "I cannot map the Spanish users into CE"?
What is the error? or else what happens? what did you try to enter? You can't map them or you can map them but they can not login?
The default domain is (or should be) just so you don't have to type it in - for none default domains you can use either the NT format of DOMAINNAME\GROUPNAME or the DN format of
DN (cn=GROUPNAME,dc=DOMAINNAME, dc=COM)
Can you login to a CE server using one of the Spanish accounts? that should tell you if it's a CE issue or a AD issue.
Kingfisher