I am trying to download from a Hi-MD MZ-RH1 to my Mac (OS X version 10.4.11). However, when I attach the MZ-RH1 to my Mac using the USB cable, the desktop doesn't show an icon for the machine. I have Hi-MD Music Transfer (version 2.0) installed, but it says "Device/media not connected." The MZ-RH1, meanwhile, is in "PC--MD" mode, so it *should* show up on the desktop, no? I can't download if the computer doesn't give me an icon to click on—help!!