I only noticed it today may but sometimes i get this weird electric kind of noise coming from the massive subwoofer for the creative gigaworks s750 speaker set. Its like how can i describe it, closest thing i guess would be a frying an egg in a pan only much much quieter...i turned the speakers on and they are working fine like always...is it just some static interference? Although it started to happen after i moved my sub a bit back. It seems to only happen after it switch the sub off and the decoder for about 30 secs randomly. then doesnt happen again after that.