I seem to have plucked a nerve
I was not referring to you in particular. Only saying that anyone absolutely dumb (which could be even me) could solve that problem. You don't need a great deal of technical knowledge for that (in fact you don't need any). I said you could be dumb, did not imply that you are.
But obviously you've mis-read that & got agitated. So here goes - Sorry but I didn't mean to offend you.