Boot Problem After Restart

aho
Hi there
I have a mini6410 board and i coustomize the WIN CE6 for this to here i had
any problem when i change os (downloading stepldr & Eboot at last NK.bin)
the windows is Starting up and work correctly but when i restart or shut it
down after that the os is n't boot and the display is black and serial port
dont print any think...
Please Help me.

Thanks.