Kindle 2 not mountable on new Mac

[nightfly13]

Strange problem. I upgraded Mac Desktops and my Kindle 2 won't initialize (mount) on my new iMac. It worked fine on the former machine. Disk Utility reports that the Kindle is MS-DOS (FAT) format. I can reformat it... but I don't want to mess with getting the software and my books back on the Kindle if there's an easier fix.

Input appreciated!

 

[nightfly13]

Solved it

The problem was using the Keyboard USB port. When connected to the back of the iMac it's fine. I didn't think a flash drive (which a Kindle essentially is) would not mount - it was charging from that port.