Hi all, I'm very new to this and have bought a Duemilanove a few days back. Followed the instruction on arduino site and managed to upload the blinking led sketch. It works and continue to work since; the blinking won't stop even if I press the reset button. I tried to upload another example but …

Serial port 'COM19' already in use

system February 4, 2009, 6:23am 6

The other listed one is Com4, which also didn't work.

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