DP reported a bug in the Web View output that affects pages with huge annotation lists. The annotation menu appears to have a scrollbar, but in fact it doesn't scroll, so you can't get down to the bottom elements in the list; and because it's position: fixed, even though the page itself scrolls to accommodate it, you can't get down to the bottom of the list because the menu doesn't move with the page. The sample page is here.

There's a JavaScript function called Initialize() that does a lot of the positioning and sizing work. It contains this line:

document.getElementById('AnnMenu').style.overflow = 'scroll';

which should make the scrolling work, but I suspect the height of the container element is being extended too far, and the container doesn't have a scrollbar. I see a line commented out, just before that:

//  L.style.maxHeight = ImgHeight + 'px';

That would set the max height of the menu container, which might achieve the desired effect, but if I've commented it out, it's probably because of some unwanted side-effect (probably with IE, which doesn't support CSS max-height).