On two installations of OES 2 Linux I am unable to get into iMonitor. After login I get a 404 error

"Error: 404
URL: /nds/0"

I have tried to unload and reload imon while ndsd is running and it does not work. Either does a ndsd restart or a server restart. This is occurring on all the OES 2 Linux servers we have. They both have all updates installed that are listed in the OES channel.

Has anyone experienced this or have any sugestions?