[gdal-dev] pct2rgb.py errors out on large rasters with rgba option

[jt2000]

/usr/local/bin/pct2rgb.py -rgba raster.grc convert.tif
*Traceback (most recent call last):
  File "/usr/local/bin/pct2rgb.py", line 167, in <module>
    dst_data = Numeric.take(band_lookup,src_data)
  File "/usr/local/lib/python2.7/site-packages/numpy/core/fromnumeric.py",
line 103, in take
    return take(indices, axis, out, mode)
IndexError: index out of range for array*

There are over 2000 categories in the file.

Any help would be appreciated.

gdalinfo shows following:
Driver: NWT_GRC/Northwood Classified Grid Format .grc/.tab
Files: raster.grc
Size is 9506, 10282
Coordinate System is:
PROJCS["unnamed",
    GEOGCS["unnamed",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 80",6378137,298.257222101],
            TOWGS84[0,0,0,-0,-0,-0,0]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-93],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["Meter",1]]
Origin = (111765.000000000000000,3467265.000000000000000)
Pixel Size = (30.000000000000000,-30.000000000000000)
Corner Coordinates:
Upper Left  (  111765.000, 3467265.000) ( 97d 4'36.80"W, 31d16'30.24"N)
Lower Left  (  111765.000, 3158805.000) ( 96d57'54.87"W, 28d29'53.39"N)
Upper Right (  396945.000, 3467265.000) ( 94d 4'59.78"W, 31d20' 6.94"N)
Lower Right (  396945.000, 3158805.000) ( 94d 3'12.66"W, 28d33' 7.18"N)
Center      (  254355.000, 3313035.000) ( 95d32'40.39"W, 29d55'24.74"N)
Band 1 Block=9506x1 Type=UInt16, ColorInterp=Palette
  NoData Value=0
  Categories:
      0: No Data
      [Over 2000 Categories listed]
Color Table (RGB with 2113 entries)
    0: 255,255,255,255
    [Rest of the entries]

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