I have come across an issue with Windows rendering of an Font Squirrel @fontface font (Lekton Regular).
In Chrome and Firefox it renders perfectly:

But in the same browsers in Windows (XP and 8 tested), it adds top and bottom padding:

The computed styles for both elements are the same across both browsers, on both operating systems.
Is this a known issue and is there a work around?
The problem was with the font file. The problem disappeared when I loaded an alterative (from Google Fonts)