Recipe recently changed from diamond surrounded by redstone. Now you have to craft energium dust like this:
[R ] [DD] [R ]
[DD] [R ] [DD]
[R ] [DD] [R ]
R - Redstone
DD - Diamond Dust (macerated diamond)and then compress it to Energy Crystal.
Your fix doubles power consumption in my case.
I have (almost) the same problem. Any of my machines (compressor, exractor, generator, macerator) are not making any sounds when working. Only when on low EU I hear the infamous sound, that machine have stopped working due to out of power.
I have installed MC Forge 4.1.1 to minecraft.jar and IC2 (to mods dir ofcourse).
I also have been using other mods like BC, Forestry, Railcraft. Will try to remove them and test with only IC² present.
This occured when running local world, will try in "SMP".
