For those of you that have to 400 and don't like the touch screen (I personally can't stand it), there's a simple fix for that. Take a trip to your local Radio Shack and pick yourself up a 10 turn potentiometer, three female 1/4" jacks, a small plastic housing box and a couple of feet of wire if you don't have an old clip cord to donate. Takes like 20 minutes to make one, and cost is under $40 using the best of the best.