I'm using the latest version of Chrome on two machines; one Windows 7 and another Windows 8.1. One has a number of extensions included, but the other has zilch.
Whenever I vote to "Delete" in the Low Quality Posts queue, the vertical scroll bar will be unclickable when the next (and all future) posts load. If I click any other action (e.g. "Skip"), this problem does not occur.
I can still use my spacebar and arrow keys on the keyboard to move the page up and down, but the scroll bar won't let me click to drag, nor can I click the arrows at the top and bottom of the scroll bar to move it.
I've not seen this behaviour in other browsers (but I couldn't say I use them that often), and only seen this behaviour on this page (out of the wholllllle Internet).