This is discussed in
this thread, specifically
this post by Russell where he says he made an error with compilation settings and in fact it doesn't work in the current release version.
As usual it's been fixed "internally", but we have to wait until the sun and moon align and somebody sacrifices their third born child whilst facing toward the equator at 6.23pm on a weekday before an update is released.
(YYG say the QA Dept isn't big enough so that's why updates are slow...)
Hope that helps.