For some reason, I'm getting "item not running or behind schedule" alerts on four items that no longer exist. I've searched through all the Administrator counters that I have set up and cannot find any that match these alerts. I removed any reference to servers with these names ages ago. See the attached screenshot of the Monitor Alerts web page. I have 4 open alerts for servers that I decommissioned ages ago and have removed out of Monitor Administrator. It's like these are orphaned alerts and I have no way of removing them.
Is there any way I can get rid of these alerts?