Don when I had my problem I was using GD2.
Try the same thing first make sure there are no extra files in the directory and then bring up the two background images in a browser.
See if one of the files are corrupted.
Sorry Don did not really read your whole post that you already tried same.

Last edited by Ruben; 02/25/2009 6:40 PM.

Blue Man Group
There is no such thing as stupid questions. Just stupid answers