Seems there is an "issue" (=bug) in IE6 with alignment of numbered lists.

After playing around, I discovered that the full 4 digit numbers displayed when I had the text size set to smallest, when the number is greater than 10000, the top digits are lost again. If I set text size to largest, then only 2 digits are displayed.

To some extent, it is affect by the leftmargin property of the document, which Michel has set to 0. If left at its default then 4 digits are shown with the text size set to medium, for more digits the leftmargin has to be increased. Various settings result in partial characters being displayed, seems the start offset for the numbers is off the left hand side of the browser window.

I'm guessing that Sergey has the text size set to smallest, so is not seeing the problem.

IE5 works correctly.