I had checked out mission control and since uninstalled it, but it turns out there were a couple plugins (mission control support and roktracker) that caused my site to loos the template I had assigned to some menu items. It only allowed the default template to appear. I dont know exactly when it happened (before or after the uninstall), but I was pulling my hair out. Serve me right I suppose.
If this is the issue I helped with this week...no, he assigned FRONT end templates to other pages in the menu...and it simply didn't work. You could make an assignment, but it didn't do anything. He removed the 2 plugins that came with MC and it fixed the issue.