At first my headset started on playing one channel (Left or right) and I had to move the jack and hold to get full contact in headphone jack receptacle. Now I can't get either side/channel to play without holding the jack and applying pressure. Apparently the ear bud jack is not making full contact. Has anyone else had this problem, and does anyone have a suggestion on how I can fix this? I don't see a piece inside the jack receptacle I can pull out or adjust to make contact.