This is my SECOND time typing this... your "Add Topic" interface does not allow going Back after Previewing in order to edit the post!
I select Admin > Task Scheduling and select the Pencil next to the Task I want to edit, then under Data Sources I remove the Exchange Servers I don't want to be polled for this task, then I click Apply. When I click Update, I'm told "Schedule description can not be empty." However, I can't edit the Description field (it's grayed out.) So there is effectively no way to edit a Scheduled Task that was created before the Description field was a requirement.