Hi all,I've got a simple question, but one for which I seemingly can't find the answer. I have an Arduino Protoshield R3, which I'm planning to use for my circuitry - it'll have the pull-down resistors for the switches, etc. on it.My understanding of prototype boards is that they have pre-drilled copper strips on one side, running in one direction, which allows the components to be connected up. I was under the impression that the protoshield worked the same way - that there would be connections between the pads in the middle, to allow connections between components. However, when I look closely at it, I cannot see tracks between the prototyping pads, like there are between some of the other pads on the shield. Is the protoshield one of these actual prototype boards, or am I mistaken?