To recreate: 1. Load URL http://www.mozilla.org/ 2. Notice horizontal scrollbar is present 3. Resize the window by a very very small amount to force a reflow 4. Notice the horizontal scrollbar is gone (The horizontal scrollbar shouldn't have appeared in the first place)

I believe that this is the same bug as 1396, 1474, 1699, 1825 & 1889. The problem is display of '<table width="nn%">'. The table outer frame is initially oversize, but collapses on reflow. (See resource:/res/samples/test3.html for a clear example (first table at top). 1474 & 1699 are already marked as duplicates, but perhaps the others should be added. The best description of this bug is in 1474. Angus, if you edit line 16 of http://www.mozilla.org and remove the WIDTH attr from <TABLE ... WIDTH=100%> you can see the problem "go away". I have a bit longer note filed under 1889.

Well, the horizontal scrollbar problem seems to have gone away, but the problem now is that the bottom of the page is missing. It appears to be a table problem

It looks ok to me.

I'm verifying this on RH52-i386 99021512 NT40-sp4 99021214 MacOS851 99021213 The reason the scrollbar appears is simple: the mozilla.org banner across the top of the page is slightly wider than the window is initially. i proved this to myslef by creating http://wetnap/seamonkey/bugs/mozilla/ . i modified the homepage in only 3 ways: 1. set the background color to a soft yellow 2. removed mozilla-banner.gif 3. set the image's ALT property to a long string of text.