Check the frame rate counter (press F11), are you dropping below 100% speed when the sound glitches? Because RSG is pretty much the music our audio emulation was built for (and the SSF rips sound great in AO and the AOSSF plugin).
> i recently upgraded my cpu to a AMD phenom 9600 quadcore....
AMD is a bad choice for emulators ever since the Intel Core 2 hit.