Very strange issue of using IKImageView in a multi-document application

FROM : Scott.D.R
DATE : Thu Feb 28 23:26:20 2008

Hi everyone.
As the topic described, I came across this issue when using a 
IKImageView in a multi-document application.

At first, I created a sample multi-document application using the 
xcode starter template "cocoa multi-document application". Without 
adding a line of code, build the application and run. You can create a 
new document window when using the short cut key, and the window does 
appear. The application works perfectly.

However, I dragged a IKImageView into the document window, builded the 
application and go. Then I clicked the menu->File->New, there was no 
new window appear. Really very odd... After delete the IKImageView on 
the document window, the menu->File->New works again, new document did 
appear.

I am sorry to say I really don't understand how this issue can happen. 
Can anyone give me a help? Thank you very much in advance.

Best regards.