Whenever I start any of my apps I see a cached screen for that app before the app starts.

For example, when I open the Calendar, I see June 24th displayed for 2 seconds and then the Calendar starts. When I open Settings, I see the display scrolled halfway down for 2 seconds and then the Settings app starts.

My phone is a 16gb 3G running Pwned jailbroken OS 3.0.

Any idea what's happening here and and how to fix this?