HotFix Available: The System Center Operations Manager 2007 console may crash in Windows Server 2008 or in Windows Vista when you open the Health Explorer window
SYMPTOMS
Consider the following scenario:
• The Microsoft System Center Operations Manager 2007 console is installed on a computer that is running Windows Vista or Windows Server 2008.
• In the Alerts view, you right-click an item to open the Health Explorer window.
In this scenario, the System Center Operations Manager 2007 console may crash. Therefore, you cannot use Health Explorer to see any monitored objects in Windows Server 2008 or in Windows Vista
CAUSE
The issue is caused by the tooltip module. This module does not correctly check the NULL condition. Therefore, the console crashes if it receives a NULL pointer.
Get the Hotfix: http://support.microsoft.com/kb/951327/