Stepper Trouble

So I just picked up an Arduino Duemilanove a couple days ago. I am brand new to microcontrollers. I ran the blinking led example, which worked fine. Then I tried to run the MotorKnob example, in which you can control a stepper with a potentiometer. I am driving the stepper w/ a sn75441one, but I couldn't get it to work properly. The motor would either seize up, or turn a little bit then stop, or just vibrate. It was very erratic. I went through the driver circuit, which appeared fine, so I decided to remove the potentiometer portion of the code and set the stepper to just step X amount of times. Still didn't work. I then put a logic analyzer across the digital outs on the arduino to see what was being sent to the driver. Here is the output:

As you can see, the steps are not lining up correctly, nor are they staying turned off for long enough. Keep in mind, this is not even hooked up to the driver at the time I took this reading, so mismatched stepper settings shouldn't matter. Here is the code I'm using with the potentiometer stuff commented out. Any idea why it would be acting like this?? Thanks!

 * MotorKnob
 * A stepper motor follows the turns of a potentiometer
 * (or other sensor) on analog input 0.

#include <Stepper.h>

// change this to the number of steps on your motor
#define STEPS 100

// create an instance of the stepper class, specifying
// the number of steps of the motor and the pins it's
// attached to
Stepper stepper(STEPS, 8, 9, 10, 11);

// the previous reading from the analog input
int previous = 0;

void setup()
  // set the speed of the motor to 30 RPMs

void loop()
  // get the sensor value
  // int val = analogRead(0);

  // move a number of steps equal to the change in the
  // sensor reading

  // remember the previous value of the sensor
  // previous = val;

You asked it to step 4 times. I see some steps. I think that a number of steps greater than 4 would make it more obvious that indeed the signals are changing appropriately.

The next thing to do is to make sure that the 4 wires from the stepper are connected in the right order to the driver.

Those signals look right. It is in a loop so it doesn't matter if you ask for 4 steps or 40, when they are finished you just do it again.

It looks like you haven't connected the coils in the right order or you are trying to go too fast. Try slowing things down.

I was able to figure it out. I have kind of a funky stepper that requires only one pole to be on at a time. So basically each wire needs to be on for one step, off for three. I ended up just writing a simple program to fix it. Even still, the output on this stepper program doesn't seem to be lining up correctly (despite what the speed was set at) between wires two and three. So maybe somebody else will benefit from this thread?