I assembled the simple 4017 counter circuit for lighting LED's in sequence. Something is amiss When I push the button to give the 4017 a pulse, instead of LED's lighting in sequence, all LED's light up. I have checked, double checked, and triple checked, and all connections seem to be correct. The only deviation I made is using a 9 V pwr. source instead of 5V, and have not yet connected the 100uf capacitor across the pushbutton switch for "bounce" prevention. Could either of those two deviations cause this?