Direct Access Issue

NetWare 6.5 SP6-GroupWise Messenger 2.0.2
Using direct access, in the scope profile Context List the organization
is selected with the include all sub contexts box checked. Some users
below cannot login, if the contexts are entered individually only the
first one listed enables login. Prior to SP6 we were using LDAP
authentication to get around this but now with SP6 the server is
frequently abending with an LDAP worker process.

Does anybody else have this issue?