Okay, so Minecraft shaders won't work. I just figured out how to get mods. I downloaded the GLSL Shaders Mod, and then downloaded the Sonic Ethers Unbelievable Shaders mod. I opened up the shaders file and pasted in the shaders mod. I enabled tweakBlockDamage, and diabled cloudShadow and oldLighting. I then clicked done and tried to open a world. It would load, and then go back to the minecraft launcher where it tells you where the update news is. I've tried everything! Even different shaders. Help? Thank you. 10 points to whoever helps me fix it!
Added (1). I have 1.7.10, by the way.
Added (2). I have a 64 bit operating system, and 8 gb of installed memory (RAM.) I have an Intel Core i5-4200U CPU @ 1.60 GHz 2.30 GHz. In case ya need to know.