.png files as backgrounds, IE compatibility?!?!

I need to find a way to use a .png image as a background for a cell with an undefined site. It seems like the .png files only work with defined heights (on Internet Explorer). When I try to make the image’s height=“100%”… there’s compatibility issues. Is there a way to force the images (as backgrounds) to tile, and have them be a defined height? I appreciate any help :slight_smile: