These three buttons in the bottom right corner of the YouTube player: the leftmost shifts the player to the left and makes it smaller (default), the middle one shifts the player to the center and makes it bigger, the rightmost goes fullscreen.
Starting from yesterday, 2012-09-06, it would appear the YouTube player won't go to the middle size when viewed with IE (at least, IE8). What happens is that the player shifts to the center, but doesn't grow, remains as small as in the "left" mode.
I have tried different computers, including the office ones, same behavior.
When viewed with Firefox, it grows just fine.
Is there a trick or a setting to make it work as usual in IE?