I am having a major issues with the digital pins, this is it. I set up a simple circuit that drives a switch (mosfet) based on a voltage reading turning on and off a LED. That is, when the voltage drops below some value I turn the led off, else turn it on. Now, the problem is that the only pin what can do this is pin 4!, the other pins don't do anything, or are able to drive it high, but not low. We actually have two intel Gen 2's and they both behave the same, so why does it do this?? this issue is about to ruin my final year project.
Also, make sure you have the IOREF jumper set to the correct voltage. The IOREF is 5V and 3.3V tolerant. If your circuit is designed to one value and the jumper is placed in the other it is likely to not work. Check your connections and let me know the results.