Check your connections.



My work bought some cheap flatpanels where the connections suck. If you touch the connection on the computer, the screen flickers and gets brighter and darker. We ordered 100 flat panels and about 70 of the monitors do this.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.