[gtkextra] Couldn't load font "Nimbus Sans L Regular 9", failing back to "Sans 9"

[<fer...@gv...>]

Hi everyone!!
I'm trying to plot an x-y plot using gtkextra,in windows 98.
Everything goes good,except that it appears an error during the execution.
This is the error:"Couldn´t load fint "Nimbus Sans L Regular 9",failing back to
" Sans 9".
Can you help me??
thanks a lot!