Enabling ldap causes freeradius server to not start up.

[Jesper Klit Jensen]

Freeradius: 2.1.6 OS: Open Suse 11.0 LDAP 2.4.9

Problem is when running radiusd in forground with logging:
Thread spawned new child 1. Total threads in pool: 1
Thread 1 waiting to be assigned a request
Thread pool initialized
radiusd: #### Opening IP addresses and Ports ####
listen {
        type = "auth"
        ipaddr = x.x.x.x
        port = 0
}
listen {
        type = "acct"
        ipaddr = x.x.x.x
        port = 0

No more after that. It will only startup if ldap is total disabled.
LDAP user account works.

Please help me with some hints for finding this problem.