I've noticed a problem with my headphone jack. Sometimes (not always), when I plug in headphone, the phone will still play everything out of the speaker. I have to pull out the headphones and plug them back in to get it to switch. This is annoying because I listen to music at work and it starts playing music really loud when I think it's going to play through the headphones. Has anyone else seen this? I'm using JVC Gummy earbuds (no embedded mic or anything).