I'm now using TeXstudio with my Macbook pro, MacOSX Lion system. I want to set the font of content to garamond but the command I got from the Internet is not working.
\usepackage[urw-garamond]{mathdesign}
\usepackage[T1]{fontenc}
The preview area is grey with such commands. I have downloaded the four pfb files for garamond, what should I do next?