Hi, I am using F&D YF1R 5:1 sound system. It has 3 jack (3.5 audio jack, 1 for center/sub-woofer, 1 for front speakers and 1 for rear speakers). whenever I use my desktop pc, i can use it properly because 3 line in 3.5 port is there (green-front, blue-rear, red-center/sub-woofer). but problem is on my HP probook 4420s laptop, it has only 2 ports (now days i see all laptop has 2 ports). thats why i am not able to use my sound system on my laptop. an auxiliary output is also available backside on my sound system but with auxiliary output i cant configure speakers separately (surround). I need solution.