i wrote a prog, where i have to youse all of the digital pins as output to multiplex many inputs. i used avrdude to flash the .hex file directly via isp to the atmega8 without bootloader, beceause of memory space reasons. but then pin 13 behaves differently (perhaps more than only this one), im not shure what. is the behaviour of the pins declared already in bootloader? so it makes a difference using the atmega8 without bootloader.