Your information in System Profiler should have included specific information about that cable's manufacturer etc. Just how old a Mac are you using for it to have only a 1.0 usb port? And is this a powerpc machine or an Intel machine? Can you at least tell me what brand and model usb cable this is? Given you are just doin this for your entertainment, I really don't have time to deal with this unless you can give organized information. I do know that all the powerpc machines did need drivers for their usb cables; I think that's till true of intels but am not absolutely going to be dogmaticabout that. The driver for your doubletalk should be provided by the program you run to use your synthesizer. Since the geek squad is not likely to have much information about running a doubletalk or other such specialized equipment, it's not likely that they know much about the programs you would use to run your synthesizer that would provide a driver. I'm sorry, but I'm not posting about this again un less you give me specific information bout your Mac and specific information about your usb cable. -- Cheryl "Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer." (Psalm 19:14 Bible KJV)