Hi Friends, I am developing an application to display user information. Initially i did it without using a login screen. But now, I require a login screen. I have created one. My problem in brief: I have created my page2(profile page which has to display user information only after successful login) in mainwindow.xib file. I have created a login page for user validation now using a UIView XIB - login.xib. I changed 'Main nib file base name' of Info.plist file to login.xib. Now My problem grew worse. My application is terminating since I dont have a window in place in my login.xib file (Actually its with mainwindow.xib which is to my second page from now on). Is there any way to solve this Issue? I am totally confused with it. Can some one provide me some inputs to move on from there? Thanks in Advance!