I have not been able to upload sketches. I have worked on the UNO without any problem - I purchased the DUE to have more memory for bigger sketches. However, I keep getting an error message when trying to upload even the bare minimum sketch (setup and loop).
I am connected to my Mac OS v10.5.8 using a single USB cable. I have tried two different cable connections (first one purchased via adafruit:
http://www.adafruit.com/products/1099 (this USB male micro B which goes into the DUE, but it's a female USB A). This connection still needed another cable: a male to male USB Type A. So I bought one from ebay, but I received the error message.
After I received the error message, I guessed maybe it was a bad cable from ebay, so I bought a single USB micro B male to USB type A male from digikey, and I still get the same error message, so it's not the cable!
In the IDE, I've changed the board setting from UNO to Duemilanove. I'm hoping there's a board setting I'm not aware of that I can install?
For "programmer" on the IDE, I've tried AVR ISP and AVRISP mkII, but I get the same error. Am I missing something here?
The device is receiving power (both the green LED "on" and yellow "L" are continuously illuminated.
When I attempt to upload a sketch, I can see the "RX" light flicker on three times before the error on the IDE is displayed. The error message is as follows:
Problem uploading to board. See [arduino URL for troubleshooting]
Binary sketch size.... 466 bytse of a 30,720 byte max
"avrdude: stk500_recv(): programmer is not responding"
Help please!

