I have noticed that (on both sides) on the rearmost sliding windows, the rubber weather stripping has a gap (.125") on the back middle edge about 1/2 way up. I am guessing this is where the strip ends and begins. I was going to seal it up with some silicone or Lexell or something (I am not going to replace the whole window seal now) but I just wanted to make sure it is not there on purpose - some kind of evaporative vent for water that gets in there or something. Does anybody know? Does anybody else have this? Thanks all and Happy New Year - I got a baby coming so I am trying to do all the little things I wont be able to do soon!