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The System Center Operations Manager 2007 console crashes, and a NullReferenceException exception is generated
Article ID: 957560 - View products that this article applies to.
Consider the following scenario:
This problem occurs when one or more tiers in a connected management group scenario have different alert resolution states configured.
To resolve this problem, restart the console, and then change the alerts that have a numeric resolution state to a correct resolution state for that tier. To do this, select the alerts for that tier, right-click the shortcut menu, and then click Set Resolution State.
Note When you select multiple alerts for different tiers, you cannot right-click the Set Resolution State shortcut menu.
To work around this problem, use either of the following methods:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.