Likely to be a fontconfig issue. What font do you use for them, what font rendering settings for fontconfig and the desktop font capplet?
** Changed in: pango1.0 (Ubuntu) Sourcepackagename: pango1.0 => fontconfig -- Fuzzy Font Rendering https://launchpad.net/bugs/43105 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
