HDMI makes the screen look like a snow storm

I got my Mac Pro before the Retina screen. When i plug in the HDMI to the screen it looks like a snow storm and the I see a picture and then back to the snow. I tried with another Mac Pro and it worked fine. The picture ws there as it should. Does this have anything to do with my software? Is it a hardware mistake? What can i do to fix it?

Hi there,
I would recommend taking a look at some of the troubleshooting steps found in the article below.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
-Griff W.

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