Having the same problem after we renewed the SSL certificate.
From the management module if you click on TrustLogos it shows as Valid From 16-JAN-11 Valid To 16-JAN-12 (Expired) that relates to an expired certificate- The current certificate shows as Valid From 08-JAN-12 to 14-FEB-13..
There is no option (that I can find) to update the TrustLogos to match a current certificate...
Can you please submit a support ticket via https://support.comodo.com
with your order number and or domain so we can go ahead and look into your issue?