Have you ever checked the option "Don't prompt when running this task in the future" by mistake when running a task in SCOM 2007 and you want to clear that check to get the task prompting again? If so, this will walk you through the steps to do that Let's take the Task "Enable Audit Collection"...

The esteemed Adrian Doyle sent me some cool registry keys that can be used to control not only what is refreshed but how often it's refreshed within the OpsMgr 2007 admin console.  Please note that we only recommend changing these values upon the advisement of Microsoft Product Support so use these...