I am in need of a device that will break down the digital SPDIF output signal to three stereo outputs for 5.1 surround sound. The reason is this: My computer's motherboard has three 3.5mm audio jacks...orange, green & black for 5.1 audio (I don't use the gray one). The problem is that the sound is not loud enough. In fact, the sound is barely audible. The motherboard does have an SPDIF jack on it which allows for both optical and coaxial SPDIF outputs. The input on my 5.1 speaker system consists of four 3.5mm jacks...orange, green, black & gray. It doesn't have any SPDIF input of any sort. Any ideas? Thanks In Advance.