Enterprise Manager

Greetings,
The command "emctl start dbconsole" fails on a system where the dbconsole was working at one time. For some reason, I cannot get it restarted. I believe one of the underlying processes that is necessary for the console has died... but I don't know what the prerequisites for emctl are.

This is on a Linux AS3 server running Oracle 10gR1.

The output for the command is here:
emctl start dbconsole
TZ set to US/Eastern
Oracle Enterprise Manager 10g Database Control Release 10.1.0.2.0
Copyright (c) 1996, 2004 Oracle Corporation. All rights reserved.
http://<my hostname>:5500/em/console/aboutApplication
Starting Oracle Enterprise Manager 10g Database Control ............................................................................................. failed.
------------------------------------------------------------------
Logs are generated in directory <log directory>

Going to the log directory, the emagent.log has this entry:
2006-04-14 12:47:21 Thread-3052829216 Starting Agent 10.1.0.2.0 from /apps/oracle/Ora10gHome (00701)
2006-04-14 12:47:26 Thread-2987391920 Disable collector (00406)
2006-04-14 12:47:26 Thread-3052829216 EMAgent started successfully (00702)

Maybe the EMAgent started successfully but, trying to access the webpage at "http://<full host name>:5500/em" produces a "Page not found" error.

At the same time, the emdctl.trc file gives this output:
2006-04-14 12:57:56 Thread-3052828896 WARN http: snmehl_connect: connect failed to (caec312x.caec.ww011.siemens.net:5500): Connection refused (error = 111)

And the file emdb.nohup has this output:
----- Fri Apr 14 12:57:56 2006::Restarting DBConsole. -----
----- Fri Apr 14 12:57:56 2006::Console Launched with PID 6204 at time Fri Apr 14 12:57:56 2006 -----
06/04/14 12:58:01 Error starting ORMI-Server. Unable to bind socket: Address already in use


Lastly, the emagent.trc file is going crazy with these constant entries:
2006-04-14 11:58:11 Thread-2965298096 WARN http: snmehl_connect: connect failed to (<localhost>.net:5500): Connection refused (error = 111)
2006-04-14 11:58:11 Thread-2965298096 ERROR pingManager: nmepm_pingReposURL: Cannot connect to http://<localhost>:5500/em/upload/: retStatus=-32
2006-04-14 11:58:11 Thread-2965298096 WARN http: snmehl_connect: connect failed to (<localhost>:5500): Connection refused (error = 111)
2006-04-14 11:58:11 Thread-2965298096 ERROR pingManager: nmepm_pingReposURL: Cannot connect to http://<localhost>:5500/em/upload/: retStatus=-32
2006-04-14 11:58:11 Thread-3019893680 WARN http: snmehl_connect: connect failed to (<localhost>:5500): Connection refused (error = 111)
2006-04-14 11:58:11 Thread-3019893680 ERROR command: nmejcn: failed http connection to http://<localhost>:5500/em/upload/: retStatus=-32
2006-04-14 11:58:41 Thread-2965298096 WARN http: snmehl_connect: connect failed to (<localhost>:5500): Connection refused (error = 111)
2006-04-14 11:58:41 Thread-2965298096 ERROR pingManager: nmepm_pingReposURL: Cannot connect to http://<localhost>:5500/em/upload/: retStatus=-32
2006-04-14 11:58:41 Thread-2965298096 WARN http: snmehl_connect: connect failed to (<localhost>:5500): Connection refused (error = 111)
2006-04-14 11:58:41 Thread-2965298096 ERROR pingManager: nmepm_pingReposURL: Cannot connect to http://<localhost>:5500/em/upload/: retStatus=-32
2006-04-14 11:58:46 Thread-2965298096 ERROR upload: Error in uploadXMLFiles. Trying again in 300.00 seconds.

This last block of messages keeps repeating over and over again.

Please forgive the length of this post but I wanted to give complete information on my problem.

OK, that's it. Any ideas?
Thanks in advance for your time. :-)
T.