My 910 was being managed by a windows XP home lap top. I backed up, bought new map up dates, installed. Shortly after I got the dreaded flashing red x. Could never get the device to connect back with the PC to fix according to the tech support directions. Once i turn the unit off, it will not turn on until I reset it. then I can turn on and back to flashing red x. I put on craddle and plug into PC (and my Mac) it goes into "formatting". When done all I have is a screen with Tom Tom GO 910 in upper right corner and a green back ground with picture of the unit in the lower left. Is there any hope of restoring the device?