A lot of users are reporting an issue whereby the windows are greyed out/opaque in their game. This seems to be all those with integrated Intel graphics. If you are experiencing this please can you post here. I need to know what graphics card you have and what operating system you are running. You can find this information by clicking on the Apple icon, top left of your desktop then selecting About This Mac. Please also state whether you have Laptop Mode enabled in the in-game graphics options. You may need to scroll down the window to see the Laptop Mode option.
I already know some people's specs. which I have detailed below in the second post. The more people who post the better, EA need to know so they can hopefully work on a fix
UPDATE 20.02.15 - this issue is affecting ALL non-Retina users with integrated Intel graphics who have Laptop Mode enabled. When Laptop Mode is disabled, windows appear as normal but performance is significantly diminished, sometimes even causing crashes. A workaround may be to lower graphics settings