"Calendar 4 won't work with Directory Server 5.1"

When trying to start instance of Calendar 4 with Dir Server 5.1 we get an error DEXOTEK ERRCODE 0x18001 -> ctldap_Open: Interoperability error
[159 byte] By [709062] at [2007-11-25 4:42:27]
# 1
Any news about this error ?Because we have the same problem...
Christophe Ppin at 2007-6-29 3:19:08 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Calendar Server...
# 2
There are a few of us out here that would benefit greatly if we could get Netscape Calendar 4.x running over LDAP 5.x.I have tried - and failed - on more than one occasion.Hmm..- jd
Jon Driscoll at 2007-6-29 3:19:08 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Calendar Server...