Hi Quester,

I started learning with Chuck's book. I don't really remember setting any fuses in my first few projects as the programmer's software has some basic defaults that take care of your basic needs. If you use for example the internal clock instead of a 4mhz crystal then yes you would need to make a change but just go for it and see what happens. You really can't hurt anything and it really helps you learn how to troubleshoot your projects.

HTH,

BobK