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Yamaha P155 + USB Storage Device + Mac OS X 10.6.4 : USB Device Not Working

Hi,

I am trying to transfer songs recorded on the Yamaha P155 using a USB Storage device to a Macintosh computer. Unfortunately Yamaha mention the keyboard's documentation that to accomplish transferring songs between a computer and a P155 keyboard using a USB storage device one must install their "Musicsoft Donwload Software" which is only available for Windows PC.

Behringer 1204USB Mixer Connection help

I recently purchased the aforementioned mixer, but I can't seem to get my computer to process the input from the mixer. I installed the driver that came with the mixer and it appears in my audio devices, but there is no signal from it. I have a mic plugged in and I can see that the mixer's levels are processing the mic's input, but it is not going through to my laptop.

USB

Universal Serial Bus.

A plug and play interface that is found on both Windows and Apple computers, that allows for connection of various peripherals without rebooting or having to add adapter cards. USB allows for up to 127 devices and supports data speeds of 12 Mbps.