regrid2 problem

[Li Tao]

I followed the instructions in readme.regrid2  and installed regrid2. When
I tried to use it with a data, here is what I got:

ga-> open era40_monthly_pressure.ctl
Scanning description file:  era40_monthly_pressure.ctl
Data file era40_monthly_pressure_%y4.dat is open as file 1
LON set to 0 360
LAT set to -90 90
LEV set to 1000 1000
Time values set: 2001:1:15:12 2001:1:15:12
ga-> d hgt
Contouring: -1000 to 2500 interval 500
ga-> d regrid2(hgt,2.2,2.5,2,2)
Syntax Error:  Invalid Operand
  'regrid2' not a variable or function name
  Error ocurred at column 1
DISPLAY error:  Invalid expression
  Expression = regrid2(hgt,2.2,2.5,2,2)


 sublime$ uname -a
 Linux altix-1 2.6.5-7.244-sn2 #1 SMP Mon Dec 12 18:32:25 UTC 2005 ia64
ia64 ia64 GNU/Linux

 Any clues?

 Thanks.

 -Li Tao