I'll take a look at it in few hours, I just don't have the time yet.
Sorry for this crap, but this should be an easy fix :)
Edit : I've just tried and seems all good on my computer, maybe try a 'fresh' install or change screen resolution in settings.ini as I forget to reset it as default :
name
Atomiclick
window_w
1366
window_h
768
Fullscreen
false
Show intro
true
Visual quality ( 1 = high settings, 2 = low settings)
1
Maximum robots on screen ( between 0 and whatever your computer can handle )
20