No monitor sound from Mbox 2 Pro ... again

[Peck2000]

Hi, all,

This seems to be a common question, but none of the conventional answers that turned up via Google have helped me ...

My Mbox 2 Pro setup has been working happily with Pro Tools 8.0.5 for months since I upgraded from Pro Tools 8.0 in March 2022. But last week it suddenly stopped outputting sound from the Monitor Port to my hifi monitor amp. Yet, if I plug headphones into the Mbox 2 Pro, I get sound from them.

So, I've tried:

1. Resetting the I/O setting to default
2. Trashing all the preferences
3. Deinstalling and reinstalling Pro Tools
4. Swapped out the Mbox 2 Pro for my backup Mbox 2 (USB)

Same result every time - no sound from the Monitor port, headphones work okay.

I have probably pressed some key combination to cause the loss of monitor sound, but darned if I can figure out what I did.

If anyone has any hints or tips on how I can get sound out of the Monitor outputs and into my monitor amp I'd be hugely grateful.

Alan