hey guys i just purchased the z506 and when testing in realtek only if i click 7.1 do all of my speakers work and this is a 5.1 system. furthermore on both 5.1 and 7.1 tests the speaker symbol that lights up does not correspond with the speaker that actually plays the audio. what should i do to fix this? on top of that when i play battlefield 4 and select 5.1 i only get 2.1 audio.