another soundfont channel ques

i downloaded some soundfonts for the guitar tonight, sounded great. only problem, when i go to staff/text properties to choose from the 5 normal choices you get with guitar (muted, harmonic, jazz, distorted, etc) only
2 choices appear - muted and harmonic.

???

well, that wont do. i was looking for all 5 choices and so sadly uninstalled the soundfont, and reset the musescore font to default. restarted the program

now, however, i still only have the 2 choices - muted and harmonic -
any ideas how to get all 5 choiuces back?