For those of you using the new Operations Manager Authoring console make sure you set up your references ahead of time. Whenever you open a management pack that refers to another management pack (i.e. pretty much -all- management packs) the authoring console requires that it be able to find all of the MPs listed in the References element of the MP. Now, if you are running the Authoring Console on a management server it will automatically look in (c:\program files)\System Center Operations Manager 2007. If you are running the console on another machine you have two options. One option is to try to open the pack without the references. When you do so, the latest versions of the console (i.e. RTM and the builds just before it) will give you a message like the following:
References management pack not found:
[Name=Some.sealed.pack,KeyToken=blahblahblah,Version=42]. Click 'OK' to manually locate it.
While this seems like a handy feature, stay away from it at all costs. We have observed that pretty consistently when you use this feature the console will crash when you attempt to view Properties of certain objects after loading your MP (I've seen it crash when viewing the properties of monitors, rules and classes). Instead, click "Tools" on the menu bar prior to opening the management pack and click "Options". Click the "References" tab and set up all your sealed MP folders in here ahead of time. This method does not allow the entry of UNC paths, but mapping UNCs to drive letters and selecting them in this view works fine.
If you use this method you'll cut down on random Authoring Console crashes considerably.
-Rob