Hey Sythan, one of the reasons you might have a black screen is because META-INF still is in your bin. If you have any mods installed, this is likely the case. If not, try it anyway.
Being a mac user, we're on the same level here .
Library/ApplicationSupport/minecraft/bin/minecraft.jar
From there, search META-INF. Search in minecraft.jar however, not in minecraft as this will not work. Alright, good?
