Hi - On my pc tower there is a small light (near the lighted power button) that flickers and I believe this indicates that there is pc 'activity' going on. However, my computer tower is out-of-view and there are times when I question if my machine has halted (I am aware of those cpu/ram/network etc. activity graphs and meters and are way to big and fancy). So, I seek a small, teeny-weeny, lightweight desktop dynamic icon/app (10x10 pixel?) that emulates that activity light. Is there anything out there?