Hi all! I have Altec Lansing 621 2.1 speakers. Hooked to my old pc with XP, the subwoofer puts out deep bass and I get room filling sound. Hooked to my new pc with Windows 7 x64, all sound, including bass, comes only from the satellites. I have speakers configured as stereo and full-range speakers setting doesn't change anything. I'm no expert but I thought the speaker system should be controlling the crossover (hard set at 100hz for these speakers) so I am at a loss as to how it can work from the stereo signal from one PC and not from that of the other. Changing the subwoofer level doesn't help either. Any thoughts would be appreciated.