Hi, I got a problem with the Xcode Quick Tour Guide. I used the guide until i was on the third page where i had to: Open MainMenu.nib in Interface Builder: In the Groups & Files list, select the project group and double-click MainMenu.nib in the detail view. Create the HelloView class: In the MainMenu.nib window, click Classes. In the tree view, select NSObject > NSResponder > NSView. Choose Classes > Subclass NSView. Change MyView to HelloView and press Return. Choose Classes > Create Files for HelloView. In the dialog that appears (Figure 1-5), click Choose. But i already could not do the first step... i opened Interfacebuilder with the MainMenu.nib... But then i didnt find Classes, so i could notselect NSObject > NSResponer >NSView. I am using Xcode 3.0 I have Mac OS X 10.5.1 Thanks very much for your help, cause i just started using Xcode and would really like to use it.