Win 7: IE 11 & Chrome 40
In both IE and Chrome, MV loses a significant portion from the bottom of the picture it is displaying. I'm surprised that I (or no one else) hasn't noticed this before, so perhaps it is a new bug inadvertently caused by some other change. Additionally, in Chrome, toolbars obscure the top of the image (MV seems to be using the wrong number to calculate screen extent -- one that does not allow for the space taken by toolbars).
File:H2_tiling_23i-1.png in IE:
Can reproduce in Chrome 40/Ubuntu; possibly related to the recent removal of max-height which masked some calculation error.