I installed these new SB Live drivers(without Liveware)in and still only had sound coming out of 2 speakers after goofing with it I set quadraphonic speakers in sound and audio devices in control panel and 4 speakers settings in Surround mixer and now have sound out of all 4 speakers at least when playing Mp3's. According to the website it said you needed Liveware 3.0 to install but it seemed to install fine I have the SBlive CT4830 the new drivers were compatible with it as long as I have sound out of all 4 speakers I am happy..