Problems with image and imagesc

[Randall M. Brannan]

I haven't been able to get either image or imagesc to work.  It seems the 
program can't find the map.  Does anybody know how to fix this?  Is there 
some environment variable I should set?  I'm using a SPARC-10 running the 
latest precompiled binary version of Octave 1.1.0 for SunOS 4.1.2 
available from ftp.che.utexas.edu.  Here are 2 simple examples of the 
problem:

1)
rome% octave
Octave, version 1.1.0.  Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.

octave:1> A=rand(4,3)
A =

  0.8167780  0.0033595  0.3337919
  0.0147679  0.9985918  0.0194999
  0.7154956  0.9428148  0.2662941
  0.3220010  0.7018176  0.3538278

octave:2> colormap(gray);
octave:3> imagesc(A);
usage: colormap (map)
error: called from `colormap' in file 
`/home/london/brannan/octave/code/octave-1.1.0/scripts/image/colormap.m'
error: evaluating argument list element number 0
error: evaluating argument list element number 0
error: called from `imagesc' in file 
`/home/london/brannan/octave/code/octave-1.1.0/scripts/image/imagesc.m'
octave:4> 

2)
rome% octave
Octave, version 1.1.0.  Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.

octave:1> A=rand(4,3)
A =

  0.816717  0.133652  0.732107
  0.097046  0.208971  0.309729
  0.679877  0.219302  0.673065
  0.607508  0.043678  0.215330

octave:2> imagesc(A);
usage: colormap (map)
error: called from `colormap' in file 
`/home/london/brannan/octave/code/octave-1.1.0/scripts/image/colormap.m'
error: called from `saveimage' in file 
`/home/london/brannan/octave/code/octave-1.1.0/scripts/image/saveimage.m'
error: called from `image' in file 
`/home/london/brannan/octave/code/octave-1.1.0/scripts/image/image.m'
error: called from `imagesc' in file 
`/home/london/brannan/octave/code/octave-1.1.0/scripts/image/imagesc.m'
octave:3>