Magellan 1700-LM Won't fully boot

I've run the Megellan re-format/ reload software, but the device never fully boots.
First time through, it told me it had successfully formatted and copied all files, and that i should remove the SD card press the onscreen OK button. I followed instructions but it never gets past the spinning wheel.. (Magellan logo, spinning wheel, dark...) Plugging it into a PC, I can see it's copied all the files from the SD card to the devices storage, but.. no joy. Bunches of reset/restarts.. no luck. Isn't there some way to reach in with a PC connection and find out what's up? Magellan seems to be running their software in some sort of virtual disk environment, or something...

Thanks for any help you can be