While I was on a large server, I didn't know that when you used optifine and super secret settings your screen would turn black. When I used super secret settings it turned the screen black, and I closed out mine craft. When I loaded it back up, it showed that I did have a super secret setting on. I logged into a server and I had the super secret setting that looked like you would have 3D glasses on. I ended up trying to get rid of it by doing many things, including turning off optifine and changing the super secret settings. When I tried f5 on a different super secret setting it sent my super secret setting back to the 3D glasses one. It seemed as if it was my default setting. I decided to re-download mine craft after I had taken it off my computer. When that didn't work, I finally changed it to my brothers account to see if there was any difference. That did not work. I would be very appreciative if you could help me.