I created a building with interior lighting. in a blend file,
i have my camera tracked Live action plate in another blend file,
I tried importing The lights via library link and they are now not active. they are there, but they are not actually lighting anything,
Secondly, Although the settings are the same, the preview panel is just showing them as blank
im using 2.63, and i used the append method in this instance. i had grouped them previously and appended the group.
these are also replica’s of a point lamp, using the ALT D method to keep them consistant, maybe this is one of the problems.