Just purchased 08 Aspen Limited. It has the USB interface but when I connect a flash drive, it says "Invalid USB Device detected". It's 2 GB thumb drive with music on it that I want to download. Does anyone know if there is something else I need to do? My computer recognizes the thumb drive and lists all the tracks. Please help.

 

As long as you're using MP3 or WMA formatted files, it should work. You might want to dump the files onto your computer, reformat the flash drive, and resave the files to the flash drive.