A.J, It seems these rear lights are failing on everyone, i bought a set last September and 2 months ago they decided to give up, i put a thread up about them and there was someone else having the same problem, can't remember his name off the top of my head, on mine it was the passenger side that failed, top 2 rows stopped lighting, i had a fiddle with them but gave up in the end i was really peed off after paying so much money for them, i put them on ebay in the end but didn't get back no way near as much as i paid, i wouldn't go near them again, stick to the late spec rears.
Do a search and the thread will come up.
Out of interest where did you buy yours from? Just that me and the other member bought ours from the same place so would be interesting to see if we all bought from the same place.