This form opens from the Double Trouble buttons Staff, Rooms and Pupils on the Basics tab of the Timetable menu. It shows which teachers, rooms or pupils have potential timetable clashes. These may be intentional such as when two classes share the same room but then again they may not be and you need to take action to resolve the problem. Clicking on the Timetable button opens the relevant part of the timetable. The rogue entry is indicated by a symbol.