I don't know why, but when I listen with my headphones (JVC Digital Ready HA-D50) I hear something like litthe 'cracks' and some other bad noises. First I thought the headphones were broken, so I checked them on my other output of my soundcard (Creative Labs SoundBlaster Live! Value), but there everything is fine. The bad thing is that I can't let them on that output, because that is Speaker Out. (They are on Line Out now). And this because there is not enough output. So I checked them on a stereo too and there again, no problem. So I think the plug of the sound card is dirty or something, but then again, only the right channel is giving those noises... So how can I clean the plug if it is the sound card, and how can I be sure the headphones aren't broken ? (They cost me about $120 so I don't want to buy new ones if they aren't broken).