Quote Originally Posted by nverma View Post
I found the problem! So surprising enough, PORTD needs to be driven at more current, I replaced the 10K resistor arrays with 1.5K resistor and now it seems to be working fine. But really these CMOS inputs should not need this much current. Just thought you guys would be curious. Thanks!
....which is why mr_e suggested posting a schematic or something like it back in post #4....