Where's the fun in that? The first bug is pretty blatant and will leap out at you if you're reading the paper closely (it's of the order of a syntax error). Des

Where's the fun in that? The first bug is pretty blatant and will leap out at you if you're reading the paper closely (it's of the order of a syntax error). Describing the second would have taken too much space, diverted from the thrust of the post and, most pertinently, required digging a book out of one of far too many identical, poorly labelled, cardboard boxes.