20000525: problem with McIDAS-X 7.6x qrtmdg.k

Hello:

I have a problem with grtmdg.k command.  It delete all the files show as 
follows:

cumulus:[54]% li GRID0*
-rw-r--r--   1 mcidas   unidata  3642216 May 24 09:30 GRID0001
-rw-r--r--   1 mcidas   unidata  3642216 May 24 22:30 GRID0002
-rw-r--r--   1 mcidas   unidata  3642216 May 25 09:30 GRID0003
-rw-r--r--   1 mcidas   unidata  3642216 May 21 22:30 GRID0007
-rw-r--r--   1 mcidas   unidata  3642216 May 22 22:30 GRID0008
-rw-r--r--   1 mcidas   unidata  3642216 May 23 09:30 GRID0009
-rw-r--r--   1 mcidas   unidata  3642216 May 23 22:30 GRID0010
-rw-r--r--   1 mcidas   unidata  8898680 May 23 23:30 GRID0101
-rw-r--r--   1 mcidas   unidata  8898680 May 24 11:30 GRID0102
-rw-r--r--   1 mcidas   unidata  8898680 May 24 23:30 GRID0103
-rw-r--r--   1 mcidas   unidata  8898680 May 21 23:30 GRID0107
-rw-r--r--   1 mcidas   unidata  8898680 May 22 11:30 GRID0108
-rw-r--r--   1 mcidas   unidata  8898680 May 22 23:30 GRID0109
-rw-r--r--   1 mcidas   unidata  8898680 May 23 11:30 GRID0110
cumulus:[55]% igu.k LIST 1 200
 GRIDFILE   PROJ  CREATED MAXGRD IDENT
 --------   ----  ------- ------ ----------------
      1     2360  2000145   300  12 Z NGM Grids VT: 0-48 HR
      2     2360  2000146   300  0 Z NGM Grids VT: 0-48 HR
      3     2360  2000146   300  12 Z NGM Grids VT: 0-48 HR
      7     2360  2000143   300  0 Z NGM Grids VT: 0-48 HR
      8     2360  2000144   300  0 Z NGM Grids VT: 0-48 HR
      9     2360  2000144   300  12 Z NGM Grids VT: 0-48 HR
     10     2360  2000145   300  0 Z NGM Grids VT: 0-48 HR
    101     2360  2000145   300  0 Z MRF Initalization Grids
    102     2360  2000145   300  12 Z MRF Initalization Grids
    103     2360  2000146   300  0 Z MRF Initalization Grids
    107     2360  2000143   300  0 Z MRF Initalization Grids
    108     2360  2000143   300  12 Z MRF Initalization Grids
    109     2360  2000144   300  0 Z MRF Initalization Grids
    110     2360  2000144   300  12 Z MRF Initalization Grids
  ---END OF LISTING
cumulus:[56]% qrtmdg.k GRID 0001 0200 3
qrtmdg.k: Done
cumulus:[57]% igu.k LIST 1 200
 GRIDFILE   PROJ  CREATED MAXGRD IDENT
 --------   ----  ------- ------ ----------------
  ---END OF LISTING
cumulus:[58]% 


Hsie