Creating my first Nintendo Wii based page, what about the top margin?

I'm not sure wether this is a Wii or Opera "bug/feature", but when I create a HTML page to be displayed on my WII, i get a 10-15 px margin on the top of the page. This margin does not occur on my desktop browser(s), it seems to be the Opera Device render who create this space.

Anyone have any clues for me?

Thansk for all your help in advance.

Of course, I have the margin and padding set to 0 in my CSS, and I've even tried the good old HTML-parameters to the body tag.

Nothing seems to be working :/

same over here. any solution yet?
thx