4gb clip+ headphone port doesnt work

I plugged in my headphones and the sound wont work unless i play with the wire. The sound only came out of one earphone, but now doesnt come out of either one unless i move the wire and hold it somewhere. Its not the headphones either because i used other ones, its the hole thing. How do i fix it?

Push the plug a little farther into the jack, maybe twisting as you go. As mentioned, these can be extrememly tight from the factory.

My Clip+ earphone socket was fine at first.  My earphone jack connector sticks straight out the Clip+ at a 90 degree angle.  l suspect my problem started when one night l fell asleep listening to it with the earphones on. At some point l must have rolled over onto the Clip+ and the pressure caused strain to the earphone socket because i would intermittently lose one or both of the sound channels unless i gently pressed the earphone jack into the socket and jiggled the earphone jack.  At first I thought I had broken the earphones but after trying a second pair, l realised it was the jack socket causing the problem.  I tried all the suggested remedies e.g. pressing the jack in firmly, twisting etc but nothing helped.  It gradually drove me nuts and I ended up taking the Clip+ back to the retailer for a swap and the new one is fine.  I am now very careful not to put any unnecessary strain on the earphone socket.   Looking at another  thread showing photos of the Clip+ disassembled, the  earphone socket is a tiny sealed unit and appears to be unserviceable.  If your clip is still under warranty I suggest taking it back.        

A right-angle plug is definitely beneficial. If your head/ear phones have a straight plug, you can get an adaptor. A worthwhile investment, in my opinion.