For a site I maintain, I'm switching from a Flash-based site to something more HTML based, and I've run into an incredibly frustrating issue. Here is the site:

www.erik-nelson.com

Each section opens in the bottom frame, and each has a header. I made the headers in in Photoshop CS2, one after another. I then updated the HTML files in Dreamweaver 8 in the same fashion. As far as I know, the images and HTML code are the same. However, the 'animation' and 'links' headers don't appear, giving the 'Cannot be displayed because they contain errors' message when I try to open them by themselves. Does anyone know why this would be happening? I'm at my wit's end.

Are you sure you've uploaded the images and that you applied the correct path to them?
See also Why are my images coming out all wrong or not loading? in the FAQ.

My browser reportsand

When I fetch the PNG images and feed them to the `file` command, it reports

Now that's odd...I tried remaking the corrupted images in Photoshop and then uploading them again, and I'm still getting these exact errors. I'm thinking that something else is causing the errors on these two pages, but I can't think of any explanation that makes sense.

This one seems OK now. The other one is gone.
http://www.erik-nelson.com/links/headerLinks.png

I believe they are all correct now.