>Yes I understand that Michel.
>I did define the background for each of the frames too.
>The background of the framesets was defined as a last attempt
>because I did not know what causes this white refresh. I have
>seen this on other sites too, and I have seen sites without it.
>Could it be the time my server takes to send the information
>to the browser ;)

I would say it comes from Windows. Here, I work with grey all the way. So, I don't see the white background when trying your site. Now, if your background color would be something like dark blue, I'd be able to simulate it as I would probably see grey and then your dark blue.