I have my early 2009 Mac Mini connected to my Denon AVR-E200 via Mini Display Port-HDMI for video & Mini Toslink to Toslink audio in for audio. Now the issue is the audio has stopped working. The internal speakers work, headphones plugged into the audio out port work but when the Toslink cable is plugged in the audio does not work now. No settings have been changed. Anyone have a solution for this issue?