Yeah - as the above thread shows I have had the same. Bit of an issue with these cars now I have found out, and very common. I checked my light fittings and nothing is out of place. I will try again this weekend when I take the LCR for a spin (as no doubt it will be raining again!) but I will expect the same.
I am not going to worry about it, as someone said turning your lights on should do the trick!