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During a presentation, a user's interactive flat panel suddenly stops recognizing touch input on one side of the screen. What is the most likely solution to this problem?
Correct Answer: C
Correct Answer. C. Re-calibrate the touch functionality of the flat panel Partial unresponsiveness in touch panels often arises from calibration issues. Re-calibrating can help ensure that touch inputs are recognized correctly across the entire surface. Option A is incorrect. Graphics drivers affect the display output but not the touch input functionality. Option B is incorrect. Extending the desktop alters how content is displayed, not how it interacts with touch inputs. Option D is incorrect. Replacing the device is premature without first attempting recalibration.