Might not be on for a while....

So I was multitasking on my computer just like looking something up and having minecraft just minimized.Then when i came back to minecraft the stupid screen was black.And now it won't close.Just great, right?Help me please!!!!!?!??!?!?!    

hofseth wrote:Restart your laptop, then click options for minecraft and click force update. If that doesn't work, go to %appdata% then go to roaming and delete your .minecraft folder and then start up your minecraft.

I can't restart it with minecraft open and I have no idea what %appdata% is but I'll try, thanks for the help

Windows way: start - run- type "%appdata%" - then remove the .minecraft folder.
btw, if you have saved worlds, and deleting that folder, everything you had will be gone, saves, servers, mod, etc.

have u installed any mods recently?

Yea, computercraft but I don't know how to apply it and I use a macbook so yea