I uploaded some graphics to my web site and put them on one of my web pages, but I (or some of my students) can't see them on my web pages. How can I fix it?

If you were using AOL when you acquired the graphics from some other web site, the problem may be that AOL translated the graphics file into its own proprietary file format, that AOL and some, but not all, other browsers can see. To solve the problem re-download the graphics from the original source while NOT using AOL and then re-upload those graphics to your web site. Or use AOL and turn off the "Use Compressed Images" option which is under the "Show Images" option and re-download and re-upload the graphics.