Well, I just received the new touchpad and installed it and that took care of the problem. After comparing the new part with the prior part that was sent me, I can definitely tell the prior part sent me was used. Because I was originally sent a bad used part I then ordered the additional $275.00 control board that I am now sending back. This would have been fixed weeks ago if I was sent a new part to begin with. I am suprised that conrtols are not in place to avoid issues like this. I will say that when I called about the bad part, customer service was very helpful and immediately arranged for the new part to be sent and did not require return of the old part . Sorry that I am venting to you. You have been very helpful throughout this process. Thanks for all your help .