PGLS

I always play full-screen, but just out of boredom, I decided to change the resolution. I exited the game, restarted, still the same resolution. Doesn't matter what I change it to, it stays the same. It's not a big deal, but does anyone know why this would keep happening?

Did you change the Mode to Windowed? (It's the setting just above Resolution.)
Also, you have to click the button at the top of that screen that says 'Apply Resolution/Mode'.

I did!

UPDATE: Apparently, I never clicked "Apply Resolution/Mode." D'oh!