Well my JBL froze during reflash (15g) and would only boot to the Jetbook Lite Boot up screen.
So after a good bout of panic I went into research mode to see what I could do

The only usefull info I could find was to reboot the PC and hope the bios could detect the drive, so I decided to try that.
Not sure if it was a fluke or not, but I removed the batteries and SD card and plugged in the USB cable to my PC ready to reboot the PC to see if windows would do a "detect and repair". Anyway I got sidetracked and never got round to rebooting. After about half an hour the JBL loaded up.
Attemting to reflash the JBL again now - I know, sometimes I'm not very bright
It's alive, alive I tell you