Arduino Duemilanove and Hmc5883l

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hi ! ? have arduino duemilanove and  ? use hmc5883l . ? find link https://www.loveelectronics.co.uk/tutorials/8/hmc5883l-tutorial-and-arduino-library . ? try code ? cant see in serial port . ? can see values when ? remove hmc5883l . can ? ? , sorry, english isnt .

do have pull-up resistors in place mentioned in tutorial? use breakout board described in tutorial? if not, 1 using? show wiring problems may lie there.


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