Interoperability - SP1 and R2 Consoles

The consoles are version specific and therefore you won't be able to connect to a R2 management group with your SP1 console unless......

The following information courtesy of Michael  Pearson:

1. Create a folder for ManagementGroupSessionManager if there’s not already one there.
HKEY_CURRENT_USER\Software\Microsoft\Microsoft Operations Manager\3.0\Console\ManagementGroupSessionManager

2. Create a new DWORD called DisableServerVersionCheck

3. Set the value of that dword to 1