I just got internet a couple of days ago, and after installing all the updates and SP2, all my music, new downloaded and old sounds like either: 1. the artist is singing in the bathroom or 2. the music and chorus verses sound fine, but when the artist starts to sing you can hardly hear it. Somebody in a chat room said it is improper codecs, but I went to the microsoft site and downloaded "Codec Installation Package for Windows Media Player 7.1 or later" but it didn't solve the problem. Please help!
What kind of speakers do you have? Check your volume settings, make sure something is not out of wack. I myself have a 4 speaker setup and my creative software sometimes bonks out and sets itself up as a 2 speaker device. SP2 shouldnt have any effect audio but just in case, disable xp firewall.