Scroll this page back and forth (vertically) using up/down keys (don't use PGUP/PGDOWN keys - only cursor up/cursor down!) and look at the table below. What's wrong with it (at least in 0.9.9): The table carcass is rendered as a black grid. That's wrong - since the border width is set to 0px for cells and rows. 0.9.6 and IE of any version don't show a grid at all - just a border AROUND the table. When you scroll the table, there appear black horizontal lines that are continuation of the rows separators (they have the width of the window!). That's a bug in rendering code! Both problems are absent in 0.9.6 (and IE, any version). When one removes border=1 from <table border=1>, both problems disappear in 0.9.9 too (but these problems shouldn't be there anyway).
Not a DOM problem, over to HTMLTables for further investigation...
This is an issue of table border-collapse: collapse. Marking P2 since this can be an regression.
Reproduced on Mozilla/5.0 (Windows; U; Windows NT 5.0; en-CA; rv:1.0.2) Gecko/20021120 Netscape/7.01, Win 2K. Testcase Keyword added.
*** This bug has been marked as a duplicate of 128930 ***