Macbook Pro to HDtv problems

Hi,
I have a macbook pro from 2009 (1st aluminum body). I recently got a samsung HDTV, and when I hook it up to my macbook, sometimes certain programs come up in a distored, unviewable form. It is hard to describe, it looks sort of like a photo negative, with random rainbow colours throughout.
if I close the program (eg firefox) and reopen it on the hdtv with a wireless mouse, then it always works. But if I have the program open first, and then plug it in and try and full screen netflix, it gets all messed up.
I did cheap out on my hdmi adapter, and my hdmi cable. I'm not sure if either of these would have anything to do with it. Help!

Hi
I've done the same thing, with no problems - the tv audio input selector setting needed adjusting, but otherwise fine. Some tv's are less than obvious how to have the audio input independent of the hdmi.

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