Avrdude%3a Stk500_recv()%3a Programmer Is Not Responding

Hi,
I have a EtherTen board, and I am attempting to load the dmd_demo example sketch from the DMD package.
  1. Avrdude: stk500recv: programmer is not responding avrdude: stk500getsync attempt 1 of 10: not in sync: resp=0x03 avrdude: stk500getsync attempt 2 of 10: not in sync: resp=0x03.
  2. When you get avrdude: stk500recv : programmer is not responding, it basically means that something wrong is happening, before the flashing actually begins.Basically you have to check (from hardware to software, low level to high level): 236 People Used.

Avrdude: stk500recv: programmer is not responding. Tags: arduino arduino stk500 arduino-core atmega328 avrdude: stk500recv You may also like.

I have tried both Arduino 1.5.7 and the latest nightly (2014-08-31). This is on OSX 10.9.4. For Arduino 1.5.7, I had to use the old Java 6 package, as the Java 7 package doesn't work with OSX 10.9 (https://github.com/arduino/Arduino/issues/2178).
When I go to File, then Upload, I get the following output:
However, I am able to successfully upload the blink sketch successfully:

Code: Select all

Stk500_recv()%3aWhen I try to upload the countdown example sketch from DMD2, I also get a similar error:
When I try to upload ScrollingAlphabet example from DMD2, I get:

Code: Select all

Any thoughts on what's going on?

Avrdude Stk500_recv() Programmer Is Not Responding

Regards,

Avrdude: Stk500_recv(): Programmer Is Not Responding Error

Victor