uploading error

I just received a new Arduino Duemilanove in the mail. I was trying to upload some example code onto the board but I kept getting this error...

hardware/tools/avr/bin/avrdude -Chardware/tools/avr/etc/avrdude.conf -v -v -v -v -pm168 -cstk500v1 -P/dev/tty.usbserial-A6008hvM -b19200 -D -Uflash:w:/Applications/arduino-0014/examples/Digital/Blink/applet/Blink.hex:i 

avrdude: Version 5.4-arduino, compiled on Oct  9 2007 at 11:20:31
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/

         System wide configuration file is "hardware/tools/avr/etc/avrdude.conf"
         User configuration file is "/Users/grantmartin/.avrduderc"
         User configuration file does not exist or is not a regular file, skipping

         Using Port            : /dev/tty.usbserial-A6008hvM
         Using Programmer      : stk500v1
         Overriding Baud Rate  : 19200
avrdude: Send: 0 [30]   [20] 
avrdude: Send: 0 [30]   [20] 
avrdude: Send: 0 [30]   [20] 
avrdude: Recv:   [20] 
avrdude: stk500_getsync(): not in sync: resp=0x20
avrdude: Send: Q [51]   [20] 
avrdude: Recv:   [20] 
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x20

avrdude done.  Thank you.

I have a Mac. I have been able to use Arduino Duemilanove boards in the past fine with this same computer. Any ideas as to why my code will not upload?

thanks in advance!

I bet you didn't select the correct board type. Your board has the new 368 chip, right ?

avrdude.conf -v -v -v -v -pm168