Error prevents Grid from working

I took the Grid course and thught I'd followed the install instructions to the T, but I get the following error in the message file:

04/25/2007 13:50:06|qmaster|thomas|C|denied: request for user "sgeadmin" does not match credentials for connection <niaaa-james,execd,1>

04/25/2007 13:50:06|qmaster|thomas|C|denied: request for user "sgeadmin" does not match credentials for connection <terry,execd,1>

I've checked and sgeadmin has the same uic on all three machines.

thomas is the master host.

thomas, niaaa-james, terry are all submit and administrative host.

niaaa-james and terry are execution host.

Any suggestions?

Thanks,

Roger

[708 byte] By [naturala] at [2007-11-27 2:29:26]