Try changing your resolution. I seem to recall one of these puzzles has an isolated one just floating off in the lower right, but there have been resolution problems seeing it.

There is a hex in the way lower right that is not showing in your screenshot.

Thanks, I'll check that out, I keep forgetting to pick a smaller resolution, I am using the one that is the size of my desktop, but in windowed mode that means the bottom of the screen is being clipped by my taskbar.