opening error of map data set and character data set

[Yusuke Yamane]

I use GrADS v1.9b4 on fedola 7 operating system.
Today, the following masage was found suddenly.
When I installed GrADS v1.9b4 at firtst time,
I could use GrADS successfully.

If anyone known about this problem well,
Please let me know the solution for this
problem.

Sincerely,

open tempo.ctl
Scanning description file:  tempo.ctl
Data file tempo.grib is open as file 1
LON set to 60 120
LAT set to 0 30
LEV set to 1 1
Time values set: 1999:10:1:0 1999:10:1:0
ga-> d mslsfc
Open Error on Map Data Set: :/usr/local/lib/grads:/usr/local/lib/grads/lowres
Contouring: 100600 to 102000 interval 200
Error opening stroke character data set
  Data set names = :/usr/local/lib/grads:/usr/local/lib/grads/font0.dat ;
font0.dat
Error opening stroke character data set
  Data set names = :/usr/local/lib/grads:/usr/local/lib/grads/font0.dat ;
font0.dat
Error opening stroke character data set
  Data set names = :/usr/local/lib/grads:/usr/local/lib/grads/font0.dat ;
font0.dat
Error opening stroke character data set
  Data set names = :/usr/local/lib/grads:/usr/local/lib/grads/font0.dat ;
font0.dat