Is it just me or do "Categories" folders open extremely slow? along with text, photos and the address book.app (not in the phone.app) It seems to me that these programs take a long time to load after they've been clicked. None are that complex, and stacks makes one folder open very quickly, why cant categories work in the same fashion? it takes much too long for me to get to any program not directly on the main screen running. any one know why?