Just a quick heads up on a new Knowledge Base article we just published. This one describes an issue where in some situations an administrator of System Center Mobile Device Manager 2008 (SCMDM) must manually request a Gateway Configuration Management (GCM) certificate from the Certificate Authority’s (CA) web enrollment page, and if the server hosting the web enrollment page has been updated with the hotfix described in Knowledge Base article KB922706, the option to "Store certificate in the local computer certificate store" may not appear.
For more details on the issue including the cause and a couple workarounds see the KB article below:
KB2142221 – A manually requested System Center Mobile Device Manager 2008 GCM certificate cannot be saved to the computer store
J.C. Hornbeck | System Center Knowledge Engineer