Blippo-Heavy.ttf has a problem on my unix system. Conceivably this problem could actually be with the true-type rendering engine, or the conversion used for the font (there's a string in the font file that claims "®Converted by ALLTYP")
I don't know enough about font files to know where the problem lies. But on my ubuntu system (feisty fawn) I'm getting kerning problems with Blippo-Heavy and specific character combinations. I see this problem in firefox and in gimp (though admittedly not in gnome-font-viewer). I've seen the problem with the 'te' and 'is' combinations, though it probably exists with others. Feel free to do an exhaustive search. These have large gaps between the letters (incorrect kerning?):