I have a DS1200 which used to work fine, but today I can get no sound from my iPod Classic. The clock on the DS1200 works fine, the iPod charges, and I can change the volume on the iPod using the DS1200 + and - buttons. But there is no sound.

The dock connector on my iPod should be OK, as I use it every day to connect to my car stereo that way.

Any ideas anyone?