Control manu is lock dell problem

Hello,monitor is showing a message "control menu is lock" all time.
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More about control manu lock dell problem
  1. Quote:
    Do you mean the controls on the screen are locked (brightness, contrast, horizontal & vertical settings, etc?)

    I had this problem once - all you need to do to unlock the controls is press and hold the Menu button for about 10-15 seconds. That should unlock all of the controls.

    It took me days of hunting through Dells website to find this when it happened to me!

    http://answers.yahoo.com/question/index?qid=20060924090029AAxiOaV
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