Thanks for your replies, but I think I have been consice enough in the description of the problem.
Open the page in Firefox and check out the Blog page (the WordPress part of the site)… Now open it again in IE, and you will see that the posts are not appearing, just the title “Sortie au lac avec mon pote Doudou – 19.01.09” , but nothing after it.
If you click on the posts from Internet Explorer, you cannot view the content.
Regards, Alexandre