Music skipping back 2 start of song

Question

Hi I hav a problem when I play music through my headphones on my iPhone 4 when the jack on my headphones move the music goes low and no bass comes through it and then when I change track it plays 10secs of it then goes back 2 track 1 and keeps doing the same on track 1 I'm new 2 iPhones apple have changed the headphones and still no change can some one help me.

Answer 1

Tom,
Sorry. I should have been more specific. Double-clicking on SONGS works (starts at the beginning). But double-clicking on hour long PODCASTS does not work. Double-clicking does nothing (except a split second delay in playing podcast).
There's a new feature that build-in to iTunes that keeps track of where you last listened to PODCASTS. So that when you quit and then start iTunes again, all your previously listened to PODCASTS will "remember" where you last stopped.
This works for all PODCASTS in ones playlist; not just a single file. So, you can have 100 different stop points on 100 different unfinished PODCASTS. This is a great feature!
Apple has taken away the double-click working on re-starting the PODCASTS at the begining because they want to make sure that it DOES NOT start at the beginning. It would defeat the purpose of the "memory" of the track point. I understand why Apple did this. But, now they should give us a "|<< and >>|" to compensate.
It shouldn't be so hard for Apple to just add another button. Make it smaller than the others. Or at least make it an option (preferences feature).
Draging the slider, ok. But not so clean as a "|<<"