IE8 displays some pages with incorrect background colour.

Most pages on my web site have a plain white background. Two of them have a feint background image over a white background.

All of the pages are displayed correctly in Chrome and Firefox.

One of the pages with a feint backgound image is displayed in IE8 with an overall medium grey background, with no trace of the image, but the other similar page is displayed correctly.

eBay's pages display with a white background in both Chrome and Firefox, but display grey in IE8

This happens on both my computers, one with XP Pro SP3, the other with XP Home SP3.

Does anyone know what the problem may be; what should I look for?

 

Thank you localstarter101, that fixed the problem.

I don't know why I didn't think of that :-o !