horizontal line appear

Discussion in 'Technicians Lab' started by geofrey, Jul 1, 2014.

  1. geofrey

    geofrey Member

    suddenly my computer display a horizontal line moving left to right and vv... even at cmos section still appear... while the horizontal line moving there is a message at the bottom of my screen on the left side imageon and on the right side imageoff... anyone know what is this? thanks for the help...

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