Pwm output is high on bootup?

Using Arduino Motors, Mechanics, Power and CNC
21

Hi all,
I tried this code on version 0022:

int Pwm_output_pin_10 = 10;

void setup()
{
  pinMode(Pwm_output_pin_10, OUTPUT);
  analogWrite(Pwm_output_pin_10, 128);
}

void loop()
{
}

Same result. Output still goes high for a short moment. Just to check I also tried it all on an other Arduino board and the problem is still there.

I have two new video's.
You see it with a led instead of the scope.
I plug in the cable and you see the process. It goes high for a little while, then nothing and after that high again and it's ready for use. I also later on press reset and you see it now does 'reboot' nicely without the 'going high' problem.

First video:
http://home.planet.nl/~sintt000/Arduino3.wmv

Second video:
Here you see the boot process when powered from a battery.
This works fast and without the problem.

http://home.planet.nl/~sintt000/Arduino4.wmv

Thanks.