A touchscreen display device and method of user input control therefor includes a graphical display that senses at least a touch down state and a touch off state at a plurality of locations displaying information. A processor is configured to receive the touch down states and touch off states at each of the plurality of locations. The processor is configured to measure an elapsed time from receipt of at least one touch down state at a subset of the plurality of locations. The processor further is configured to alter the display of information at the subset of locations if the touch down state persists beyond a predetermined elapsed time indicative of an interference.