Hey there! Today, I was going through my servers, and I found a server 1.8 only. I couldn't remember what it was so I wanted to join, and try to remember. I was trying to switch versions to my 1.8.8 OptiFine, but it wouldn't run. I tried it with all my other 1.8 versions, even the non OptiFine ones, and they wouldn't run. I tried my backup MC folder, and non of those saved versions worked for 1.8 either. I tried deleting them, and I could play the 1.8 versions again. I was downloading and trying to insall OptiFine again, when I ran into a bigger problem, the "Install" button for OptiFine (Not the website, but when I ran the installation program.) was grayed out! I've tried reinstalling Java, running Javafix, and anything else I could find on the internet. Nothing has worked! Please help me!