In this test case: http://www.bath.ac.uk/%7Epy8ieh/internet/projects/mozilla/overflowscroll.html ...which was written for another bug (so ignore the text of the test), when you scroll the document up and down, the _inside_ of the <div> with 'overflow' set to 'scroll' is repainted before its scrollbars, which means that there is like a double-paint effect. It is mildly disturbing. TO REPRODUCE: Open the test page. Scroll the document fast, up and down. Notice how the white <div> box with blue text seems to "tear". Now scroll the document slowly up and down. Notice that while the page is moving, the inside of the <div> element seems to spill out of where the scrollbars indicate it should be. When going down (as if to see the top of the page), the white box actually spills over the bottom scroll bar. I will attach a screenshot, which shows the behaviour seen. I took it by hitting the Print Screen button while rapidly scrolling the document up (as if to look at the bottom of the document).

This is a performance bug, and sounds perhaps GFX scrollbar related.

Reassigning all view bugs to kevin.

This problem doesn't exist with gfx scrollbars. In gfx scrollbar mode When the document is scrolled it must be scrolling the contents then updating the scrollbar position as a second pass. In native scrolbar mode all child windows including the scrollbar are scrolled with a single call. Eric, any ideas?

Yes I have a fix for this. I mailed you and troy the diff. I'll check in today and close this out.

Mass-moving most M15 bugs to M16

So, Eric, you gonna close this one out?

fixed

Fixed in the July 6th build.