I just "upgraded" yesterday from a Power Mac G4 to a 17" MacPro. Among other adjustment problems, I can't open PDF files. The message I get is "You can't open the application Adobe Reader because it is not supported on this kind of Mac." I've tried downloading the latest version of Adoobe Reader, an although it seems to download, I can't find it. How do I deal with PDF files on a MacPro?