The freeze problem I mentioned always happend on stage. When you play live as much as we do nightly you are constantly switching styles and sounds on the fly to create sought of a medley when you have a full dance floor, so you may be doing 4, 5, songs in a row with different styles without stopping thus having to hit Buttons very fast on the fly (one of the reasons I dislike a touch screen unit)and this is where the problem lies. I think the unit is confused somtimes creating "LOCKUPS or FREEZE" problems. But a unit MUST be able to work flawlessly Under Stress on stage unlike home use. Just my opinion.