I'm going to the Apple Store on Wednesday to most likely have my logic board replaced. To those who have had this done, how long does it normally take? Also, if they determine (for some reason) that this repair is not under warranty, will they call me first to tell me so I don't get a huge bill? As a side note. Where are the water sensors in the 17" MacBook Pro. I haven't spilled anything on it, but I have used it in some humid situations, and I fear that some of them may have been tripped erroneously. I don't know why I fear these sensors so much, but I just do. Any help would be appreciated on either front.