There seems to be a problem with my headphone out jack on my 1st Gen Touch. Sometimes it just doesn't work and I have to wiggle the headphone plug around to get it working again. I'm assuming this is something that is covered by AppleCare (it expires in December, I believe). Can I just take it to an Apple Store in the mall? Will they take care of it there, or do I need to mail it in? How long does it usually take to get it repaired? What do I need to do?