This is certainly the most visually striking bug I've seen so far. System: Win 98 Steps to Reproduce: 1)Load <a href="http://bugzilla.mozilla.org/query.cgi">bugzilla.mozilla.org/query.cgi</a> 2)Scroll down to the selection boxes near the bottom of the page 3)Select an element from the Program: box Results: Scrollbar from the components select box begins to "vibrate" in place, jumping around the screen and leaving images of itself. The location indicator on the scrollbar fills gradually. Eventually, this odd display stops, resulting in the select boxes being shifted to the left of the page Expected result: simple selection of an element in the box Affected Builds: M14 (build ID 2000022820) reproduced on a clean install See also: <a href="http://bugzilla.mozilla.org/show_bug?id=19608">bug 19608</a>

Funky :-) spasemunki@hotmail.com - are you still seeing this problem on recent builds of Mozilla? Gerv

The Program box has JavaScript on its onChange event to repopulate the Component list which is then being continually repainted. Perhaps its painting (and the document reflow) should be deferred until after the event has been processed?

*** This bug has been marked as a duplicate of 30091 ***

Verified duplicate.