MD-11 Landing and taxi lights

Hi!I'm really enjoying MD-11. The best add-on I've ever seen. Congratulations to all PMDG team.I don't know if this is happening just with my config but both taxi lights and landing lights are not bright enough to allow a safe taxi.In fact they do not illuminate quite anything, which is very disappointing if we consider the high quality of all systems of the aircraft.Any ideas? Running FSX+SP1+SP2 under XP SP3.RegardsSchmid