i find i have some trouble when swithing from 3 pins to 10 pins,and auto.in jeepers when you try to program a 3 pin,after you program a 10 pin or auto atmega you get this popup saying some part or all of atmega isnt atmega 128,do you want to program anyway,say no,because it wont take anyways.what i do is,put card in wrong way in programmer,try to put my atmega back to original state,but it will say,wont enter program mode,do this twice,then put card back in programmer the right way,try to put atmega back to original state,this time it will go,and then you can program your atmega