Problem with undo in a secondary nib file

Hello list, I have an application with two nib files. I have one text view each in both the nibs. The problem is, I can undo in the text view in the Mainmenu.nib but can't undo in the text view in the second nib. What I'm missing here? Any help would be greatly appreciated. Thanks in advance, V

Problem with undo in a secondary nib file

Hello list, I have an application with two nib files. I have one text view each in both the nibs. The problem is, I can undo the text view in the Mainmenu.nib but can't undo in the text view in the second nib. What I'm missing here? Any help would be greatly appreciated. Thanks in advance, Vish