I've been out for a while due to the winter break so I'm still trying to get caught up on all the things I've missed, and part of that includes all the new Knowledge Base articles we published over the last few weeks. There are far too many to discuss each one individually but I've got the list below if you want to peruse it real quick. At least that way if you run into a similar issue maybe you'll remember you saw something about it here.
KB978553 - There are no Office Communications Server 2007 events in the MOM 2005 Operator console
KB977574 - Error message in Microsoft System Center Operations Manager 2007 report: “The Dundas chart for Reporting Services report item is unavailable"
KB978357 - A computer may be listed in the Agent Managed pane of the Operations console in System Center Operations Manager 2007 with the same name as the gateway server that was just installed
KB978556 - Error message when you run Operations Manager 2007 R2: "The SSL certificate is signed by an unknown certificate authority"
KB978356 - You cannot install the Operations Manager 2007 Cross Platform Agent on a Linux host
KB978358 - Error message when you try to install System Center Operations Manager 2007 R2, or you try to run the Scxsslconfig command-line utility on a Linux-based server: "Failed to get random data - not enough entropy"
KB978361 - Data in a Service Level Tracking report does not appear as expected in Operations Manager 2007 R2
KB978359 - E-mail notification messages are not sent when you use the "With specific text in description" option in Operations Manager 2007 R2 or in Operations Manager 2007 Service Pack 1
J.C. Hornbeck | System Center Knowledge Engineer