Ok, I put an background color behind the pagination, but I am not 100% satisfied with the results. It looks like a wart sticking out of the top of my pagetitle

So I thought - ah! I will just create a solid color yellow image, use it for the pagetitle_background, and then shift it upwards to lie behind the pagination. Then I will have a nice horizontal block of color!
But I cannot seem to get ANY image to show in my pagetitle_background. I have tried using gif images, png images, jpeg images, and they don't show up. I have tried setting the background color to transparent, white or black, and it makes no difference. All I see is a transparent block in the middle of my pagetitle. I can link directly to my image via a browser window, so I know I have my image path in there correctly. I remove the image path and I can go back to solid colors and everything works fine. The second I add an image it defaults to transparent.
Any idea?