What setting do you use if you are using an external USB-to-TTL FTDI-type cable or adapter?
"None of them" is not an option. One will always be selected. Does this mean the IDE will ignore what is selected when I'm not using an external program? Currently having some problems with "avrdude: stk_500_getsync(): not in sync: resp=0x00" when I try to program the Arduino.Am I wasting my time selecting different programmers and trying again?Nick