I am trying to record through a a mackie mixer and a UA-1A onto a macintosh running the latest version of tiger. when i plug in the UA-1A into the USB, cubase is not recognizing it. There are no drivers available for download at the edirol website, and i'm wondering if there is some software i need (i lost the UA-1A box) or if there's a step i'm missing when hooking up the device to the computer. The UA-1A worked perfectly with my old Windows computer. any advice would help a great deal, thank you.