I have an NSTabView, and I have an NSImageView behind it, filled with some image. The NSImageView is outside the NSTabView. Somehow, I can't get the image behind the tab view being displayed. For some reason, the TabView interior keeps being drawn and it results in something like this: Can anyone tell me how I can get the image from the background be displayed? Note that this happens only on 10.4. In 10.5, it is being displayed correctly. It seems as a false configuration from IB... Help...!