Rendering Issue

I’m not sure this is a Yii issue but I’m experiencing a flash of a blank page just before a new view is rendered. This is distracting. I have experienced normal rendering so that the new view content appears to render without changing the header, but for some reason it has changed in my application. Is there something that I might have done to cause this? Where should I begin to look? Any help or suggestions appreciated.

Thanks,

Zeke