so i think the problem i'm having is that i have the newer version of Xcode, and an older version of "Cocoa Programming for Mac OS X" by Aaron Hillegass. page 20, creating a class. says to click on the classes tab in the interface builder menu. ... i don't have a classes tab there. maybe its been moved to a different place, maybe i'm just a complete noob and i am missing something entirely. either way, anyone got anything for me? much thanks.