2011/12/8 Hoo, Karlene <karlene.hoo at ttu.edu>: > \usepackage{"C:\Program Files\MiKTex 2.9\texfiles\myfiles\mathbbold"} Thou shall not use spaces in filenames there. You should not (have to) use a path there; please study the MikTeX documentation on how to make files visible to TeX. Best Martin