First, sorry if this has been posted already. In a bit of a rush so i couldn't do the search function.. But I just recently upgraded from a 32gb to a 64gb iPad. I'm finding the wifi signal on the top left go up and down, i don't know if that is because it's raining outside or it's my actual iPad! I'd like to know if ne of you guys share the same issues with me, and what did you do to fix it? I'm nervous and i don't want to go to the store again :-( thanks in advance!