SIM5.3 add/delete client problem

[donna hofmeister]

On a 11.31 rx system, the SIM application no longer able to add new (or delete old) clients either via the GUI or CLI (mxnode -a). No obvious error msgs are received from either. GUI finishes (or times out) after approx. 30 mins. CLI says it was successful (Node has been added/modified:), but client does not get added.

buried in mx.log there is this...

===============================================
@!@,2009-06-18 17:25:36 CDT,SESSION,SUCCESS,LOGIN,USER,Successful
Sign-In (127.0.0.1),NOTE,root,,,
@!@,2009-06-18 17:25:36 CDT,CONFIG,FAILURE,DELETE,NODE,system :
Identifier = 0000001438eb1baa00000003000004a8 : DnsName =
system.domain.com : ChangeFlags
= 0,ERROR,root,3540819,604670798,
One or more of the selected systems can not be deleted.

any ideas/suggestions?