Security Software

I've gotten myself thrown into an LDAP installation and have been able to get around pretty good but there are still some things that yet escape me.

First, I have a couple errors showing up that I have tried to search for answers for but what I find has not been helpful. So, if you will let me start with 2 seemingly simple error messages:

In the below error what does the id number represent and is there a way to search on this id? It is not uid or appear to be any other field within the ldap database.
[21/Sep/2009:10:26:34 -0500] - ERROR<20996> - conn=-1 op=-1 msgId=-1 - Cannot parse entry from database for id 119703, string=""
[21/Sep/2009:10:26:04 -0500] - ERROR<20996> - conn=-1 op=-1 msgId=-1 - Cannot parse entry from database for id 120153, string="\÷F$"


I have these showing up constantly but I have not found anything that helps me find what they mean. The uid in this error (ok, informational message) can repeat several times but it isn't always the same uid.
[21/Sep/2009:10:28:43 -0500] - INFORMATION - conn=-1 op=-1 msgId=-1 - dn_assertion2keys_ava: invalid dn for value uid=XXXX7016999,.

My installation:
Red Hat Enterprise Linux ES release 4 (Nahant Update 5) - 2 servers with replication both are masters
Sun LDAP:
[dsadm]
dsadm : 6.2 B2007.192.2247

[slapd 32-bit]
Sun Microsystems, Inc.
Sun-Java(tm)-System-Directory/6.2 B2007.192.2247 32-bit
ns-slapd : 6.2 B2007.192.2247
Slapd Library : 6.2 B2007.192.2247
Front-End Library : 6.2 B2007.192.2247


Thanks in advance for any help!
John