Maybe I'm a complete idiot, but I never had this problem before leopard. I'm on iTunes 7.6 (It did the same on 7.5)...anyhow. When I shift click update, it doesn't recognize the IPSW file. When I download it, it's in its zipped form, but when leopard unzips it, I just get the contents of the file instead of the whole IPSW file itself, making it impossible for iTunes to recognize it. Any thing I can do?