Looks as though you've fixed it, at least on the pages I viewed:

http://www.leatassie.com/
http://www.leatassie.com/humor.html
http://www.leatassie.com/speculative.html
http://www.leatassie.com/romsus.html

If you don't see the background images on those pages, a good "first thing to try" is clearing your Firefox cache:

orange Firefox button or Tools menu > Options > Advanced

On the Network mini-tab > Offline Storage : "Clear Now"

Then try reloading the page. Does that help?

If not, and if you use any kind of ad blocker, disable that temporarily to see whether it is affecting your images.

Thanks for answering. I cleared the cache, then reloaded each page, but I'm still not seeing the tiled background in http://www.leatassie.com/speculative.html or http://www.leatassie.com/mainstream.html (or it might show as "literary"

No, I don't use an ad blocker.

Since you can see these pages properly, I wonder if there's something amiss with just my computer. When I looked in the Troubleshooting section, the notes said that I should update my graphics driver. However, I don't know how to do that. All that Windows Help talks about are drivers for hardware. Lea Tassie

I noticed that the navigation changed and now when I click the link for speculative I get: http://www.leatassie.com/scifi.html

On that page, I don't see the background image. I suspect it is related to the space in the file name. You might replace that space with %20 and see whether that helps. Try the same thing with the background image file name on http://www.leatassie.com/literary.html

Does that help? If not, you could try using quotation marks around the file name, i.e., background-image:url("file name.jpg");

Regarding display drivers, Firefox 4 and higher attempt to use the higher end features of your PC's graphics card. If you check here, you can see whether graphics acceleration is enabled in your settings and, if so, whether your current graphics card driver supports it:

Help > Troubleshooting Information (at the bottom)

- Direct2D Enabled
- GPU Accelerated Windows

Because graphics acceleration can cause some font problems and other issues, you can choose to disable it here:

orange Firefox button or Tools menu > Options > Advanced

On the "General" mini-tab, uncheck the box for "Use hardware acceleration when available"

This doesn't take effect until you restart Firefox.

Add quotes around the URL if there are spaces, as you should always do, as suggested above, that works for me.

body {margin:0;height:100%;width:100%;background-image:url("./image/green clouds.jpg"); background-repeat:repeat;}

Re: graphic acceleration, both Direct 2D Enabled and GPU Accelerated Windows are blocked already. And I discovered that SiteSpinner is not working the way it used to. I have the latest update. I used to be able to alter the code, now the software won't let me. Not a problem until now. In Firefox, I checked the code for all the pages and none have quote marks around the background URL. So I think this has to be a SiteSpinner problem. Now all I have to do is decide whether to follow up on it, or switch to Blue Griffin, which I understand is Mozilla software. Thanks very much for all your suggestions! I'm afraid none of them worked, but I've learned a lot, which I appreciate. Lea

File names with spaces need quotes. You may not have used files names with spaces in the past if you didn't see this before. Always be cautious with using names that contain spaces and change them to other delimiters like a hyphen (-) or an underscore (_). If you can't change the code (adding quotes) then you have to change the file names and eliminate the spaces.

Thank you! I'll go do that. Now I understand why I see hyphens in the names of graphics I download from the Web.

You're welcome.

With spaces you can sometimes end up with %20 in names and URLs and that may not always be convenient.