Lost Product Images at amazon.com ONLY

Hi:

I am just getting up to speed on Firefox 1.0 and have added a number of 
extensions. Just yesterday, all the images at www.amazon.com fail to 
appear. If I search for a Linksys router, I get all the descriptions but 
the place where the "pictures" used to appear "looks" blank. But, the 
images are apparently there -- I can hover over them and see the links.

I can go to any other web site including the UK amazon site and the 
product images appear. Apparently, I have done something inadvertently 
to block the product images just at www.amazon.com.

I have temporarily disabled all my "extensions" but that does not "fix it."

I logged on to my account at amazon.com on another PC and can see them 
fine, so I assume it is not something I have changed at amazon.

I am stuck. I thought about uninstalling Firefox but it would be some 
work to re-install all my extensions.

Any help in restoring these images would be helpful.

Thanks,
Jess