Ok, I just figured out how to customize the Startup Image..the instructions are on page 48 of Nav System Owner's Manual. I have the Advanced Tech Package. The Image has to be a JPG or JPEG image up to 10MB. On your home PC, you create TWO files on a USB thumb drive, one called "StartupImage" and "DisplayOffImage" (Both Case sensitive). You put the files (images) that you want, inside the "StartupImage" folder. You then go to your Prius and plug into the USB port. You then go into Setup -> General -> Customize Startup Image. Then just follow the onscreen instructions and your done! When the car starts, you still see the Toyota logo for a second, then your custom image for another second, then the system is booted. I now can enjoy my Kids picture before every trip!