Comment 32 for bug 448686

Okay, new weirdness:

With a table long enough (5 pg-down worth in my case), scrolling makes the _right_ border re-appear as the table scrolls down. Scrolling up again makes it appear too. That was in my intranet, with a 2-col layout, table on the right.

So I modified the test case, by copy/pasting about 200 more <tr/> for each table. Now it's the _left_ side that reappears while scrolling. It's sporadic, though: depending on whether you drag the scrollbar or use the mousewhell, or even how fast you go, it may leave 'holes'.

I'm using Mozilla/5.0 (X11; U; Linux i686; fr; rv:1.9.1.4) Gecko/20091028 Ubuntu/9.10 (karmic) Firefox/3.5.4.