Several months ago I noticed water on my entertainment ctr top after a hard rain and caulked the scenic window frame. It seemed to do the trick. But, this past week we had several hard rains and the water poured into the window frame inside, ran onto the entertainment center cabinet and dripped on the floor. Could it be the window vent is clogged up? Why are those things there? Where does the water go when it drips into the vent? If it's the vent, how do I clean it out? Due to my husband's health I do most all the repairs so would appreciate help on this issue. Know leaks can be a "needle in a haystack!"