The whole touchscreen works and is calibrated except for the upper two corners of the screen where you can press to silence an alarm and where you would press "OK" to clear a notification. I've tried cleaning the screen with a 70% alcohol wipe and I've also tried calibrating the screen, but it always comes back saying "touchscreen calibration has been confirmed". Does the touchscreen need to be replaced or is there a simpler fix for this issue? RE: Welch Allyn - Connex 6000 Series
