Can't zoom in/out

I'm playing on a Macbook Pro 13" with latest Mountain Lion installed. Using Safari web browser. Never had this problem before, came after latest update (26/7), can also be connected to the Mountain Lion update.
I can't zoom in or out in-game with either the mac touchpad or a standard Logitech mouse.
Pretty annoying...

My native language is not english so sorry...

Yes me too and my dad also - we've had same problem since mountain lion - really frustrating.
I've found the = and - keys on keypad work for zoom but its doesn't solve the scrolling in trade window or star???

i've had the same problem, using Safari, latest version and Mountain Lion, used to be able to zoom in/out using magic mouse but doesn't work after recent updates. Updated flash player and cleared the cache but still not working.

Me too. Safari & Mountain Lion.

same here