Created attachment 520857 [details]
the Blink example with the modification and the original sample file

Description of problem:
- The SDK some times doesn't take in consideration code outside the setup() routine. 

Version-Release number of selected component (if applicable):
- arduino-0022-4.fc15.noarch
- On an Arduino Uno

How reproducible:
Every single time you try to run the 'blink' example code

Steps to Reproduce:
1. Open de Arduino SDK, load the 'Blink' example inside 'Basics'.
2. Compile and upload to the board.
3. Reboot the board.
  
Actual results:
LED on pin 13 doesn't blink

Expected results:
LED on pin 13 should be blinking

Additional info:
The work around for this code to work is to alter the example so it will look like this:

boolean done = true;
void setup() {      
  pinMode(13, OUTPUT);
  done = false;  
}

void loop() {
  digitalWrite(13, HIGH);   
  delay(1000);              
  digitalWrite(13, LOW);    
  delay(1000);              
}

The main difference between this and how it should be is that on this code one has to declare the variable 'done' and alter its value inside the setup() routine. 
To be honest I think it has to do with some optimization flags passed to the compiler or so.