debugging

i dont think ive EVER seen a good grounds-up debugging tutorial for complete beginners. certainly not on a site like this, and certainly not one that goes to any serious level. how are novices expected to get to grips with all things tracing and breakpoints? do we have a serious speed bump on the learning curve or did i skimp on the research before posting? ******** A Problem Worthy of Attack Proves It''s Worth by Fighting Back