Last modified: 2010-05-15 15:33:04 UTC
It appears that under MediaWiki 1.4, any article which begins with a wikitable (and perhaps with a HTML table, I haven't tried) inserts a rather large white space. At first, I assumed someone had placed a category at the top of an article, but when I tried to fix it, I found that there was nothing to fix. It's not especially important, but it's bothersome.
This apparently happens if the table is included as a template, some issue with $linestart. See bug 1176 *** This bug has been marked as a duplicate of 1176 ***