KerberosAgent.app not opening

Alright, new install of 10.6.2. wanting to see if I could open up KerberosAgent and play around a little bit, but the dern thing won't even open. It shows the process is running in activity monitor, but nothing ever opens up. I get this in the log. Jan 14 11:52:18 mbpro /System/Library/CoreServices/KerberosAgent.app/Contents/MacOS/KerberosAgent[410]: launch_msg(): Operation not permitted I've done disk repair and can't think of anything else to do. Any help?