Minecraft Forums

When I try to install Mo Animals, along with Minecraft Forge, and a GUI that goes with it, my .Jar keeps resetting when I start up Minecraft. I look back at my .Jar, and it's as if I never touched it. No error or crash or anything, Minecraft just starts up normal with no mods. I tried force updating, but I don't know what else to do, I'm new to modding Minecraft. (The only things I have experience modding with is C&C, OFP, and BF1942.)