What have I done?!

Hey everyone,

A couple of weeks ago I was playing around with some settings on my Windows 8.1 laptop. I was operating under the premise that if I took some graphical responsibilities away from some UI elements, I might be able to get some better gaming performance. I don't remember what I tweaked, but I want to go back to where I was before I changed my setting.

Currently, jagged edges are very noticeable with fonts and other UI elements (round ones especially). Even though this screen is a crappy 1366x768, this wasn't a problem before.

Do you guys have any idea which setting(s) I might adjust to get this looking good again?