@shadowstrike: it could be something else thats conflicting with NE. I'll check it out. I am guessing its something todo with the ancient expansion messing em up. But not every game night elf uses so you may come accross a NE who plays much better.
@zycat: Yes. It should fill out a war3error.txt file in the executables location and while in game display reports of unleaned locations (If there is no leaks it wont list anything but the war3error.txt file should contain some generic map information at the top so you know its working). You need the correct dll in the folder too.