[Thought]

Guide to fix this problem for nVidia users:

1. Click on Start, go to Settings, then go to Control Panel -> Settings -> Control Panel
2. Go to Display, a new window should appear, titled Display Properties, change to the Settings tab, then press the Advanced button.
3. A new window, titled (Your monitor name) and (Your video card name) should appear.
4. Switch to the tab named after your video card, it's probably named something like GeForce (model name/number).
5. A new menu should pop out of the side of this window, look for Performance & Quality Settings in the list. If this menu does not appear, you need to update your graphic drivers, please go here.
6. Now, there should be three slider bars, titled Image Settings - (Selected Setting), Antialiasing - (Selected Setting), and Anisotropic Filtering - (Selected Setting).
7. If the Antialiasing setting is at anything OTHER THAN Off or Application, change it to Off or Application, however, I suggest Application.

Attached is a screenshot of the window what I am talking about.