The volume slider featured on the disc is at the highest level, but I still can't hear anything!

  1. Go to ‘System Preferences’ (in the Dock or under the Apple logo in the top left of your screen). Select ‘Sound’ and then select the ‘Output’ tab.
  2. Select the correct output device (e.g. speakers, headphones) and then drag the volume control bar to an appropriate level.
  3. Make sure the ‘Mute’ button is not ticked.
  4. Run the program again.