I don't see anything special about this window - no dynamic placement etc - I'd think that if we had the issue here, we'd have it in many more places as well.
I've tried various combinations of screen resolution and font size, but can't reproduce.
From that screengrab, though, it appears that the issue is simply that the window is too large to fit onscreen. I think the buttons are there, they just aren't where you can get at them.
Only fix I can think of is just rearrange it so it's not completely vertical.