User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.14 (KHTML, like Gecko) Chrome/24.0.1292.0 Safari/537.14 Steps to reproduce: Went to the url www.scribd.com/doc/106965069/Ramayana on Firefox in Windows. Scrolled down to the bottom of the page. Actual results: When scrolling, after getting to a certain point the background will start showing large vertical black stripes. The further down I go the worse it gets. At the bottom of the page the background becomes even more corrupted with random parts of the page appearing in the background. See attachments I tested on Windows XP and Windows 7 on different machines. No other browsers have any sort of issues. I tried with "Use hardware acceleration when available" on and off on both operating systems. I encountered the problem on Firefox 16. I tried downloading nightly, currently 19, and the problem still happened. These urls also have the same problem: http://www.scribd.com/doc/107058469/Freedom-on-the-Net-2012 http://www.scribd.com/doc/107016775/Military-Air-Power-Doctrine http://www.scribd.com/doc/107062953/Z-142-Aircraft-Flight-Manual http://www.scribd.com/doc/59554863/Censored31-over-de-Zandvoortaffaire-enMarcel-Vervloesem-in-Al-Qaida-in-opmars Expected results: The page should not have become visually corrupted.

I can reproduce the layout problem without HWA since Firefox7. Regression window Good: http://hg.mozilla.org/mozilla-central/rev/dad825159748 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0a1) Gecko/20110527 Firefox/7.0a1 ID:20110527011902 Bad: http://hg.mozilla.org/mozilla-central/rev/04e8d0b481bc Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0a1) Gecko/20110527 Firefox/7.0a1 ID:20110527081111 Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=dad825159748&tochange=04e8d0b481bc Regressed by: Bug 562746

How does this look in the current Firefox Nightly?