I successfully downgraded to firmware 3.1 using 1.2.9 soft and everything works fine, so I think there is some kind a bug with "hold" from 1.3.0 up... ;)
I've got the same problem since I Updated and Upgraded firmware.
I've got Apple Remote and the center button do not generate hold action :(
All other buttons works with hold except the biggest middle one.
How can I downgrade?