I have just installed the General Midi Module plugin that came with my M-Audio KeyStudio 49i keyboard into a MacPro running the latest update of Snow Leopard.

I have got the keyboard interfacing with GarageBand 11 just fine and can control GB's list of software instruments, but when I want to select the M-Audio General Midi Module as a software instrument I can not hear any of the sounds. You can click on the Sound Generator settings icon (in GB) and bring up the GM_Module interface and change the instruments etc, but no sound comes out.

The module runs fine in a 'standalone' mode separately from GB - you can play and hear all the midi instruments...

It seems crazy that you can select this module from under the 'Audio Unit Modules' section in GB, but no sounds come forth!

I apologize if I have missed the answer to this somewhere else, but I've searched both here and on the M-Audio KB, but there are no obvious solutions...

Any help would be greatly appreciated! Thanks.