VGA Adapter Flickers or not recognized

I have an iPad 3 / iPad with Retina Display and have purchased the official VGA adapter. When I connect the screen is mirrored (or extended in Keynote) but the image flickers and the image is not clear at all.
Is there any way to adjust the resolution or output or configure anything?
I have tried restarting the iPad with the VGA connected and monitor but then I get a message that this device is not supported and the monitor stays black.
Thank you

I have attached this to a 24 inch monitor using iPad 3 6.0.   The screen remains blank.  I have never gotten an image since purchasing the adapter. 
Does anyone have any answers?

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