I'm getting similar results too.
Just went out to make a video, the first time i planted it in 3rd gear and both green lights came on as they should. But then the second time when i did it in second gear they would not illuminate properly... I still get that 'kick' though so i know they are working.
Also, when its dark its easier to see, but when the 2 green lights do illuminate properly, the red ones dont actually go off, but they flash (pulse) very quickly and quite dimly, so you cant see it untill the sun goes down.
Heres them lighting properly:
http://www.youtube.com/watch?v=hSiOJhprlrk
Heres them lighting kinda in the same way as yours
http://www.youtube.com/watch?v=L4ZBuLXQQes
Seems to be pretty random.