Linux V0022 Mega 2560 crash (SOLVED?)

Using Arduino IDE 1.x
4

The upload shows successful, but the code will not start on upload or reset.
I have experimented with this for two days, and finally came up with this code to determine where the crash was happening. The LED does not light. Remark out the "Serial.begin(9600);", and all is as you would expect.

void setup()
{
  pinMode(13,OUTPUT);
  digitalWrite(13,HIGH);
  delay(1000);
  Serial.begin(9600);
}

void loop()
{
}

EDIT: The code produced by the Linux version and the Windows version are different sizes.