Curly Bracket Character corrupt when commented.

When using the free font, Bitstream Sans Vera Mono font at size 8, the left curly bracket characters are kind of corrupt when they are on a commented line.  Or if they aren't necessarily corrupt, they certainly don't look how they are supposed to.  This appears to only happen at font size 8.  See screenshot.  Also, the brackets appear normal when the line or characters are NOT commented.

Keep up the good work on ST2!  Best $60 I ever spent.