Help - can't upload program to arduino duemilanove

  1. While loading a simple program to arduino duemilanove I am getting the following message:
    avrdude: stk500_getsync(): not in sync: resp=0x00
  2. Working with:
    windows XP,
    Arduino 1.5.5,
    Selected board arduino duemilanove or diecimilia ,
    COM1
    3.One connected, before anything, there is a red blinking led on the arduino.
  3. Can someone help?

Do you have FTDI drivers installed?