I have had no luck with e-mails from thier "customer service" web site.

After talking to more than ten people, in their "Customer Relations" department, over a two-week period, they finally sent me a replacement unit. My Pronto NG is still-under-warranty, only 7-month old unit. Unfortunately, the replacement unit is refurbished and has a similar problem. Touching a button at the bottom of the screen highlights one in the middle of the screen. I can't even recalibrate it because the recalibrate button is at the bottom.

I just sent a three-page letter to the president of Philips Consumer Products to let him know what's going on in the Customer Relations Department.