Well this newbie is getting some help here. I do indeed have the v.2-400. I checked on the back of the subwoofer. I installed a y-adapter to the number one output on the Audigy 2 card. Then I changed the speaker setting to 2/2.1. This seems to have cut down on some of the cracking but not all, When I play a mp3 at the very first part of the song it makes the noise and then stops. It does this on all mp3's. If I reclick and start the song over it does not make the noise. This has got me baffled! I have soldered the ends where I cut the speaker wires to make it shorter. I really don't know exactly when the cracking and noise started. It may have started after Ii cut the wires but I don't know for sure. I guess my next step is to change out the speaker wires unless someone with more experience with these speakers can help me further. I still have the noise when I exit and enter Windows Xp. Thanks again for any more help on this!