My computer has been broken for about half a year. I recently just acquired a new one, so with all the updates, Minecraft has been pretty confusing for me to jump right back into and start modding.
That being said, I've recently attempted to install a mod. When I went to go install Minecraft Forge (1.7.2 Version, because the 1.7.4 Version isn't released yet.) It said I had to manually run 1.7.2 first. I jumped in at 1.7.4 so I can't go back to 1.7.2 myself using the Minecaft Launcher.
Please help i've been trying for almost a month to install mods, and personally Minecraft is pretty boring without them.
Added (1). I can't switch using the Launcher if I never had 1.7.2, also Forge will not install itself if I haven't played 1.7.2, becaue that is the version of Forge I'm trying to install.