This question is an exact duplicate of:
A few days ago my internet browser (Google Chrome) was updated and formulae on MSE became strange. I didn't make my own screenshots earlier, but the change you can see below (I've found similar picture):
First is from "past", second as it looks now. It seems to me that something is wrong with my MathJaX, but I can't find anything to retrieve previous configuration. How can I deal with this stuff?
(upd) Here are two screenshots: 1st from Chrome, 2nd from IE. Maybe, this problem reffers not to Chrome only