[JackSpadesSI]

I drive a 2011 E90 335i. It has iDrive, and I have ~300 songs loaded onto the internal hard drive. The car was built in July 2010, so it doesn't have the newest iDrive system (which I believe started in September 2010). Today, while driving, one song finished and it simply stopped playing music. I can't get it to play any music off the hard drive anymore. My car is not yet six months old, so I'm very disappointed in BMW for this issue.

Details:
- The satellite radio still works fine (I didn't try AM/FM)
- The navigation maps still work (so the hard drive isn't broken, right?)
- Turning the sound system off, then on doesn't fix it
- Turning the car off, then on doesn't fix it (I removed the key, too)
- I can scroll through my music but selecting a song doesn't make it play
- When I select a song it gets "check" marked like it should
- When I select a song the progress bar doesn't move
- Doing a music search/filter doesn't search correctly
- The songs were imported via USB

Maybe unrelated, maybe useful details:
- This morning I had to click the heated seat button twice because it didn't register my click the first time
- Over the past two weeks the car has been driven in temperatures as cold as 0 F

It is a two hour drive to my BMW dealership, so I would like to see if I can find an easy fix first before bringing it to them. Please let me know if you have any thoughts or suggestions. Thanks!