In each of the MacNN forums, the main Topic/Topic Starter/etc. table has some stray material that isn't properly contained within a table cell (<TD> or <TH> ). Specifically, there's a seemingly nonfunctional "<center></center>" near the top of the table. Different browsers handle this illegal material differently; iCab allocates a cell for it, thereby shifting the column headings from where one would like them to be. This ought to be fixed.