I opened an existing Microsoft Project file today and was unable to expand/collapse the subtasks use the cursor and the '+/-' signs beside the parent tasks.
I am able to expand and collapse using the 'View->Outline' ribbon icon. However when I attempt to do this using the mouse on specific tasks, my cursor will not perform the task. My cursor is a 'white cross' when I need it to be an 'arrow'.
I'm assuming this is something minor that I'm missing. Any assistance appreciated.