I have a Sansa C250 and discovered a problem today. I originally bought the unit for webcast downloads that I play through my car stereo (with an off market transmitter). Today I finally decided to listen to music instead, plugged in a headset and, to my surprise, only had audio in my right ear. I removed the headset and discovered that I could plug the jack in partially and get stereo but the jack was not "seated" so I lost audio easily. I bought the unit at Office Max more than a month ago and doubt I can return it. Is there a way around this problem. Are there headsets with reverse connections for stereo? I discovered a blog site that mentioned the same problem so has this become a recurring issue? Can I actually open up the unit and repair the problem?