Fix for not being able to cycle through radarmodes with a target locked.
Fix a bug where the radar would not be radiating in certain instances when going from MRM ACM modes back to default modes.
Fix a bug where the radar can get confused about the modes and display a blank MFD.
F1 key now works properly again -> when in ACM modes, it takes us out to CRM modes. If ACM modes are to be cycled, F11 can be used.