the problems started when I wanted to play a self-burned DVD that was encoded in the NTSC format in windows media player. it played, but I had no sound. so I installed powerdvd and it played. the second dvd encoded in the same format wouldn't play any sound in either program though. so I installed codecs and during the installation, it de-installed two files that had a similar function to the functions that the codec itself had. and now, I have no audio at all. none. not even when logging on or off. I hope the sound card isn't busted, but it doesn't look that way. can you help?
the codec pack I installed was k-lite. I have windows XP. the audio settings seemed fine, the volume is all the way up.