Try while they are open make sure theres no gaps space stray material in the track of the housing where the two meet. Next since you already have sealed them back once, make sure all the screws are seating, what i normally do is make sure i bake them before resealing them afterwards while they are nice and warm screw them together make sure everything seats nice and tight and rebake them for 5-10 mins to spread the sealent while they are together and then take them out to dry, worst case use belts or straps to hold them tight while the glue drys to make sure theres a tight seal. Last case pop some gel caplets in there to soak up the moisture as last ditch effort, you can find them on HIDPLANETS home page in there store. Good luck a condensation leak can be a pain but once its fixed your good to go.