I'm using the Creative T6100 speakers and can only get RL Ctr & Woofer to give sound. Have downloaded the latest Vista 32 bit driver from the Creative site but does not change things. Have tried all methods of set up and all logged on as 5.1 surround sound. Could there be a conflict somewhere? This is a new machine (3 weeks ). Preloaded were Windows Media center and player plus Cyberlink DVD suite plus of course the Creative media player. Any pointers would be gratefully accepted.