Logitech g35 Surround sound issue

Hey, i have been playing a couple rounds recently and it sound like some of the sounds are coming more heavily through the right channels. it sounds very odd how my characters voice is mostly coming through the right side even though he is on the left side of the screen.

watching a reply the surround sound works fine and sounds appear where they are suppost to. but only recently the sound for something majorly come from right channel.

any help please?

also im using windows 7 64bit.

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