Cian Broderick

This is for unmodded 1.6.X in a renamed book and quill

That's how its ment to work. Its the BUD affect. As the redstone block buds the piston and the lever causes the block update.

@Kumasasa Thanks' for letting me know, installing now.

This is saying to mojang, Ug, my server cant keep up with us spawning 30+ mobs, fix it.

Happens me too, close your MC Java file (the one with the crafting table icon) then reopen it through the launcher.

Only happens with texturepacks like "Slender"

Cannot reproduce, only shift + right-clicking opened the inventory and right clicking ride's the horse.

@Grum Yes, you fall into the void and don't die...

Did you accidentally press f10 or fn & f10 while holding the button, as that will sometimes' cause the computer rather than doing just this;
Start
qqqqq
End
to doing this;
Start
Loop
q
Loop
End

Intended feature on PC, Mac and xBox.

Using filter's can stop the anvil from being used.

MCPatcher is quite buged with the new launcher.

Uinstall Optifine, On my PC using Optifine alway's cause's that, so try with a fresh jar file.

Useing a texture pack might cause that, try default.