So I've come across this a few times, I like to remove the margins on my html lists so the bullet sits outside the text block. This is just appropriate, looks great and makes for much easier to read copy.
Sometimes though, IE just hides the bullets. So the less-than-graceful work around is to use display:inline on the ul or ol.
This lets the bullet show outside the block in FireFox and moves the list items inside the block in IE.
Not pretty but functional.
