Hello I have a Eclipse AVN726E That I purchased brand new and installed professionally 2 weeks ago Ive noticed that when I try and use the touch screen sometimes there is a Lag when I touch it and when I try to hit the volume button Ill hit it to increse or decrese sometime it takes awile for it to register and when it does I can hit the volume button one time and it will move so quickly on its on it will go to max volume by itself? What might be the issue for all of this? Thanks very much!