When I click on Play, Minecraft comes up looking very strange. It has pixels where they should not be. The Minecraft logo is partly obstructed by these pixels, which are covering approximately 3/4 of the title screen. When I open the Singleplayer, Multiplayer, or Realms menus, the previous pixels are replaced with these menus' pixels. When I play the game, 3/4 of the screen is obstructed by the dirt-textured loading screen. For example, when my character catches on fire, the fire texture stays behind when I extinguish myself. When I walk through a Nether portal, the purple portal texture replaces the dirt and fire. I have tried repairing Minecraft multiple times and that still does not fix the problem. I even deleted Minecraft from my computer and reinstalled it, and the problem is still not solved.

What I expected to happen was...:
Pull up Minecraft title screen like normal.

What actually happened was...:
See description above.

Steps to Reproduce:
1. Pull up Minecraft Launcher
2. Click on "Play"
3. Pull up Minecraft 1.8.3 title screen