I just spent a day downloading Apple's Mac OS X Developer Tools (I don't have a Developer's CD), and I fired up some apps and had all sorts of problems. For example, Project Builder says a bunch of header files are missing when I attempt a build, and just about everything in Interface Builder is completely non-functioning (you can't access the Info Window, for example). What's up? Is there something else I need to download? Or can I just order the Developer's CD to be mailed to me? That would be nice.