xenofur wrote:btw, the background seems to dance around in opera when doing, well, anything ^^ (dragging map, clicking on the little flags, etc.)
Yeah, Opera seems to have the most bugs with regard to layer positioning of any of the 4 I test with (Firefox, IE, Netscape, Opera). It seems that it is temporarily resizing the overall document, including all non-visible content, while you have the mouse button held down, thus causing the background of the page to shift to account for the new document size.
I made a slight adjustment to the background attachment which should eliminate the visible shift. However, it's not eliminating the crazy document resizing which causes the scroll bars to jump around.