Featured Slider Images don't always show

I'm using Catch Base and have 3 slider images. The first one show, but the 2nd and 3rd don't until the page is scrolled. When image 2 and 3 is supposed to show, I see a scrolling circle like the flash is trying to load but never does. Eventually image 1 shows up again. If I scroll the screen down, the 2nd and 4rd images start loading and continue to load after that. How can I fix it so all the iamges show without the visitor having to scroll the page? Thanks, Dan