You can adjust quality of font from within the FFXI Config software from outside of FFXI itself. As for your problem, it appears fine to me. The kerning was never perfect on it, and the first/last letters tend to get a couple pixels shaved off as you see on the lower-left corner of the M in Moogle.

Only other thing I can think of is you were using a widescreen resolution prior, which tends to stretch the font/icons out horizontally.