Support Re calibrate keyboard

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http://androidforums.com – Is there any way to re calibrate the keyboard touch points on the samsung gsIII because as of earlier today when I am typing a message my delete key wants to put the letter L in instead of deleting..and I have cleaned my screen I have restarted my device and it works when it wants to and iv never had this problem before nor have I dropped my device so im not sure why all of a sudden this is happening!? (General)