Sigh. I'm going to have to stop relying on Expert Flyer for seatmaps.
Logged on a day before, and most of the seats were unassigned.
Next day at the stroke of check-in - very very few seats unlocked, and not even the ones I wanted down the very very back!
NOT Happy!
24 hours in a 777 in a 3 x 3 x 3 isn't my idea of fun.