While CME network engineers continue to configure Channel 6 to transmit CME Globex^®options data, we are asking all RLC users to test the new usernames/passwords provided to them last week for connectivity only. These usernames/passwords will be pointing to Channel 4 to enable connectivity testing, effective Tuesday, November 23, 2004. Please logon, confirm you have connectivity to Channel 4, then logoff and send an email tokbrady@cme.com, confirming or denying a successful test.

Once all CME systems changes are complete, the new usernames/passwords will be changed to point to Channel 6. We will advise all RLC users when CME options data will begin flowing over both Channels 4 and 6.

If you have any questions regarding this notice, please contact:

Marilee Radecki 312.930.8193mradecki@cme.com

Kevin Brady 312.648.3653 kbrady@cme.com

Lisa Amato 312.338.2654lamato@cme.com

Thank you.