Right and Left Channels always flipping

Hi,I have a pair of wired Turtle Beach X1 headphones coming out of the L/R output of the back of my 32" Samsung LCD. The source of the audio is my xbox 360 with HDMI cable connecting to my televsion. The Left and Right audio channels are consistently flipped when I turn everything on but after 10min, if I reboot my xbox, the left and right channels will be correct. Any ideas/suggestions?