I have a bose ipod dock, and 2 ipods one newer 80gb classic and a much older 40gb classic. Initially the bose charged my docked 80gb classic, but after i plugged in my older 40 gb classic (which I knew would n't charge, as described in bose literature)the 80 gb classic will now not charge when docked. Any suggestions?

Audio Players & Recorders - Bose - SoundDock digital music system Docking Station for iPod -...