Retina macbook HDMI issues...

Hi
Ive recently bought a retina macbook and its  an outstanding piece of kit. Unfortunately I've come accross a little glitch with the HDMI port If i plug in my TV via hdmi, the connection temporarily cuts when I move the machine arround . Im just wondering if its something that is a normal glitch of the retina macbook or something I should look to get fixed?  To behonest, Im quite relucatant to go through the hassle of taking it to a macstore but it is slightly annoying to have such a glitch on an otherwise perfect machine.
Ill try and find another HDMI cable and see if anything changes - but the guy over at macrumours said that it didnt make any difference for him.
thanks for any help you can give
Nick

This happened to me the other day, with an LG TV. Although it's not en eegent solution, I found that unplugging the HDMI, turning the sound up on the laptop, then plugging it in again worked. Until Apple releases a fix for the OS, that's the only thing I've found to work.

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