I have Arduino duemilanove and it's 4-5 month old,
i have problem with serial interfacing,
i uploaded simple serial code:
led 13 is blinking but serial output is like "¸
so i tried another two atmega328 with Arduino boot-loader but same problem.
i also tried to uninstall drivers, restart pc, serial loopback test shorting 0 and 1, external serial monitor and everything is fine except serial monitor,
i also used putty but same output.
ps. i can still upload the sketch, pc baud rate 9600.
any ideas ???