BTW, you say you can hold the lead on RTCC. How long is it ? Jinx > Second Time: > GND--> Push button switch ==> RTCC/22kohm -->Vcc(+5V) > > Result is: still the same.... :( , it doesn't count, and only count when my > finger touches the lead(RTCC). I also found, when i hold the lead(RTCC input > wire) it counted so fast and the light so dim almost couldn't see from the > 7-Segment LED, and i didn't push the input button only hold the lead(RTCC). > Is there anything wrong, can anyone tell me where i did wrong at the > input circuit. Thank You Very Much!!! > > Tools i am using: PIC-ICE for PIC 16XX