grsec + ACL + NIS - Can't get it to work

[Novell]

I'm running grsec with acls enabled and the machine should run ypbind
and get its users from a NIS-server. However, when I enable the ACL
system, I cannot login with the NIS users on the machine..
id <username> can find the users but it's not possible to login with any of
them, not even with su - username as root.

Anyone know what I need to add to my rules to make this setup work ?