special fonts

[Rudolf Henze]

Hi,

Iam using Lyx 1.1.6fix4 with SuSE 8.0 and the class book(coma-script).
The text Iam writing on, has a lot of pathnames in it.
Example:
"the configuration file is in /data/config.txt"
For better reading I want that /data/config.txt is formatted
with a non-proportional font like courier.
tia
 R. Henze