Minecraft: GLSL Shaders problem?

So, whenever i put the shaders mod into the mods folder in my.minecraft, that was created by forge, i launch minecraft and the text is surrounded by white boxes and same on every other place where text would be. When i try to launch a world it just goes all fuzzy and doesn't do anything. But when i remove the shaders core it works fine. I'm using up to date java version, and on minecraft 1.8.