Baden, it doesn’t seem to be browser-specific. Clearly, it was an issue with the theme.
Wow. It’s working now. Nalabsy, you were right at first when you said that there may be an issue with the theme. I changed mine to another theme (Academica) and that seemed to have done the trick. Thanks again.
Yes, even I thought it was a problem with my theme. However, I tried this with a couple other themes, and I encountered the same issue.