Thanks for the info. As far as I can tell it's because the length of the page gets reduced while the content is loading, removing the vertical scroll bar. Then

Thanks for the info. As far as I can tell it's because the length of the page gets reduced while the content is loading, removing the vertical scroll bar. Then when the content loads the scroll bar is needed again - so the page jumps to where it was again. I will try and fix this in the next redesign - perhaps fade out the content and overlay a loading bar while the content is being fetched rather than completely nuking it. Thanks.