PatriceMartin

Problem resolved! I followed the posts in the link above and rebuilt my media library and deleted all the photos that no longer had images attached. It took quite some time, though (I use many photos in my website). Doesn’t it seem like a programming error that the photo images disappear in the media library? Would be great if this could be fixed. But thanks very much for the information, alchymyth.

No, I’m not using a plug-in. I may not be describing the problem clearly. The ability to use multiple header images randomly is part of the core WordPress software under Appearance–Header. I am using the Twenty Eleven theme.