So last night I was watching a YouTube video without headphones, when the sound just cut out.
I have a jailbroken 3GS on 4.0.

The first time I rebooted the phone to see if that would help my springboard crashed. Not sure if that would have anything to do with the loss of sound or not.

The silent switch is not set to on. And I don't believe it's the headphone bug because when headphones are out it doesn't say headphones in the volume select and the iPod will stop when I unplug them.

Any ideas?? Or am I out of luck and the speaker is shot?