It's for Mac. And where is the second line supposed to go? I placed it as the first line after [default]
Is it case sensitive? "WindowedMode=TRUE/FALSE - This line must be typed out at the top but below [Defaults]."
I figured out what was wrong. The first line said Default and not DefaultS. I have it running windowed but my mouse doesn't work now.
When you launch the game, click on the EQ icon when it appears on your dock (before the black rectangle appears in the top left corner). When it loads, you'll have mouse control.