Drag And Drop Killed By loadNibNamed

Hello all, hope you can help.

My application loads a window from a nib and then displays it.  This 
window has a Text View (NSTextView in NSScrollView).

When the window is loaded from a nib using:

[NSBundle loadNibNamed:@"nibfilename" owner:m];


dropping text (using drag and drop) on the NSTextView doesn't work.

It doesn't seem to matter how I show the window once I load the nib. 
Have it show via "Visible At Launch", show using 
makeKeyAndOrderFront, show using beginSheet.

If I copy the window into my main nib show it, then drag and drop 
works fine.  Does anyone have any ideas why the drag and drop is 
getting killed when I use loadNibNamed.

Thank you.