a newbie question:
i have a problem using my Arduino NG without my computer : i can put my programs onto Arduino and it works fine while the USB is plugged.
However if i connect the Arduino alone to a separate power source, - jumper switch to external, - power led is ok, - the led pin 13 blinks for a start, but then waits forever and never blinks again, (and the program never starts), unless i plug my computer (even if not sending any data!!).
I can make the board work without the computer only if i it started with the USB (but powered separately) and then i can remove the USB cable.
it should be possible to start the board without the computer plugged as i read on the bootloader page in arduino website.
any suggestions ?