SharePoint 2010 discussion lists have scrollbar always visible

On team discussion lists there is a bug that might upset the more picky clients. There’s an annoying horizontal scrollbar always visible even if you have very little content:

Horizontal scrollbar visible

After thorough inspection, I figured out the issue. One of the header cells of the table that shows the discussion has a position absolute.

This is an empty cell (it has a transparent image inside) and, for what I could find, it doesn't have any use.

Guilty cell

So I just changed the position and didn't have any report of issues since.

This is the rule you can use to fix this issue:

table.ms-disc table.ms-unselectedtitle td {

position: static !important;

}