Quote Originally Posted by simpsonss View Post
i would like to ask a question. I'm facing the same problem as you too. everything works find with 4Mhz OSC but no for 20 Mhz OSC. what u mean by parallel with power supply? i should i connect the circuit?
http://en.wikipedia.org/wiki/Decoupling_capacitor

Hmmm... 1000mF as decoupling Capacitors - always knew I made my boards way too small... - Melanie