Can't scroll through summaries

Wave is my favorite app and I have probably turned 20 people on to it. With that said I am having one issue. On my mac desktop, I can only select the sumamries that are showing on my screen. It won't allow me to scroll with my mouse/trackpad up to any summaries that were created beyond what is showing on my screen at that time. I provided a screen shot that shows my summaries but there is no way to see any beyond what is showing on the screen shot. Does that make sense? Anyway, let me know if you need more info.