I've researched the issue, and followed most of the options, except number 10, described at http://support.microsoft.com/?kbid=283807, including uninstalling and reinstalling NIS. I've also tried System Restore, but none of the dozen or so dates that I picked would work.
I think it's an encoding problem, and I can sometimes get the images to display if I check Western European IS0 manually under the view, encoding menu. However, it's very flaky. Sometimes, I can view the page with Western European ISO selected, and images are still missing. Then I refresh again with Western European (Windows) selected and some missing images appear, but not all.
Nothing is consistent, except some of the small images are missing.
Here's the number 10 step described at Microsoft Knowledge Base 28307:
Note that in some cases you may also be able to resolve this problem by manually editing the registry. For example, if the28591 String value is missing from the following registry key, a Web page that is encoded for the Western European (ISO) code page might not display any images:
The value for this registry key should be set to the name of the appropriate code page file in your Windows\System or Windows\System32 folder. For the Western European (ISO) code page, this value should be either Cp_28591.nls (Windows 98, Windows Millennium Edition) or C_28591.NLS (Windows NT 4.0, Windows 2000, Windows XP).
Yikes! As far as I can determine (but I'm not sure if I'm checking the right "value"), the criteria described here checks out on my system. So maybe it's not encoding at all.
Can anyone please help me???