External speakers not recognized

After sucessfully setting up airport, and getting my external speakers to work, my apple network no longer sees the external speakers. The speaker option does not come up at the bottom right of my iTunes screen. Any ideas?
TIA

Mike in No. Va. wrote:
When I hooked up the Bose Companion II speakers .... the computer didn't recognize them.
Am I missing something here? Whenever I've connected a USB device
to my MacBook Pro or Powerbook G4 they've worked flawlessly.
I've seen referenced to setting up the MIDI utility, could that be it?
Not sure what you mean by "the computer didn't recognize them."
Do they appear in *System Preferences > Sound > Output* ?
When I connect a USB audio output device, the system "sees" it -- but
doesn't automatically enable it as the active audio output. The system
default (internal speakers or headphone jack) remains in force 'til you
change it manually -- either in System Preferences > Sound > Output
or with /Applications/Utilities/Audio Midi Setup > Audio Devices.
Looby

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