Frank, it is my experience, that when the touchscreen has dead spots, meaning certain areas of the screen not working, that it is the digitizer that is failing. It does sound like a failure in the digitizer circuitry. Discuss this with the vendor and try to arrange for either a new one or a refund. Of course, you do want to double check your work as well, but my money is on a broken digitizer. Hope this helps, good luck.