I use my 770 nearly everyday on my 30 minute commute via light rail. If I get a seat, I read, play a game, etc. If I have to stand, I usually just listen to an audio book.

My problem is that the headphone jack on my 770 has become loose and now only occassionaly plays stereo. Usually I just get sound in my left ear, but if I jiggle the jack, I hear both tracks.

I had this happen within 2 weeks of getting my 770, and I returned it and got a new one. Now, nearly 2 months later, it's happened to my second one.

Has anyone else run into problems with the headphone jack?

I'm thinking about sending it back to Nokia to get it fixed.