The optical mouse acts like a joystick of sorts.
For those who require the optical mouse, but unfortunately upgraded to Dingo 1.11, you can download Dingo 1.10 from here:
http://www.entourageedge.com/support....10/update.zip
Before using this
update.zip, I would highly recommend contacting support to see how the device would handle a downgrade. In fact, contact support first, instead of downgrading.
I am sure that all the previous updates are archived on their website, if downgrading is a possibility, then developers may still have a chance to develop with full debug access, which was removed in one update(as I have read in a previous developer post).