Released March 2006, identified by model D620 on the keyboard bezel.

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Do I have a bad video card?

My Dell Latitude D620 works fine on a docking station with external monitor but the LCD will not work. It just drifts from yellow to green to blue, etc. I changed the panel and inverter with no help. Should I look for a video card or is this related to the motherboard?

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Lewis Fulk, the video card is an integrated component of the motherboard. If your video card would be at fault, your external monitor would not work, thus I am pretty confident that it is not your video card. You obviously have a new panel as well as a new inverter. I would next (should have been first no last :-) replace the LVDS cable and check your connector closely for any damage etc.Hope this helps, good luck.

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