Hey, this only happened to me once on 1.5 but ever since I got the 2.1 update and I connected my phone's bluetooth to my car and try to play music it speeds, like really fast. Maybe 2x its original speed. Then when I disconnect the bluetooth and play the music through my phone's speakers it's normal again. I tried everything that I could think of, restarting my phone, killing all my apps then playing music, disconnecting then reconnecting bluetooth, pausing then playing, etc. This happens on every song that's on my SD card. Oh and ever since the update my car didn't recognize my phone so I had to pair it up again.
I would really appreciate it if someone could help me. Anyone else have a similar problem?