I typed: "/scoreboard players add @a l" and then pressed [tab] in order to auto-complete "loose". works with any letter
then the Game crashed.
there are 18 scoreboard objectives.
Environment
OS: Mac OS X (ver 10.9.3, arch x86_64)
Java: 1.6.0_65 (by Apple Inc.)
Launcher: Minecraft Launcher 1.4.4 (bootstrap 4)
Minecraft: 1.7.9 (updated Mon Apr 14 15:29:23 CEST 2014)
Please attach your
scoreboard.dat.