eyebrow45

I've got an N707 which I love and I've been using the Nero Image disk/Simple Burner method and been happy with it. I recently tried again and the upload PC to MD failed with the message Recording failed. I tried a second known-good N707 and got the same result. The disk image plays fine in WMP. The only change I've made to the system is the use of USB keyboard and mouse in order to use a KVM switch. I'm running XP pro. Anyone else run into this? Thanks, Eyebrow 45