Mega 2560 as ISP for ATTiny

kwilson68:
Sorry, I meant to say that I had the capacitor between RESET and GND.

Oh rats! The capacitor goes between RESET and GND. I apologize for the mistake.

Some also suggest that a 120ohm resistor between RESET and +5V would work as well. One thread on the old forum even mentioned connecting both.

I've read those things as well. I suggest trying: capacitor, resistor, then both. The goal is to disable auto-reset. If it looks like the board resets when an upload starts then try a different method.

I also suggest an LED (and series resistor) on pin 9. A "heartbeat" should always be present.