Recently I have been getting some jittering sounds while I play games, or listening to audio via video and mp3's. When the jittering happenes, I stop the video/audio and replay it and the jittering is gone for now and I need to restart applications to get rid of the jitterness as well. I think its my soundcard because the same thing happens when i switch headphones. I just need to be sure if I need to replace my sound card or not. My sound card is quite old, it is reaching up to 3 years old.