Hi,
I have encountered following two minor problems while doing Nesting.

1 seting IDATE1 in icbc.param to 1st time step of any month (eg   IDATE=1996080100) generates following error:
........
........
ifc -tpp7 -O3 -cm -w -w90 -w95 -o ICBC ICBC.o cdc6hour.o era6hour.o -L../../Commons/env/liblinuxold -lnetcdf -ludunits -Vaxlib
NREC =       289280
NSTART,NNNEND:        70981       70989
IDATE1,IDATE2:   1996080100 1996080300
Note that rotated Mercartor (ROTMER) projections are not supported by GrADS.
   Although not exact, the eta.u projection in GrADS is somewhat similar.
FERRET, however, does support this projection.
READ IN fields at DATE: 1996080100 from ATM.1996070100
GLONMN,ALONMN,ALONMX,GLONMX =
   47.13818       61.51401       102.7002       113.4036
GLATMN,ALATMN,ALATMX,GLATMX =
-4.366865       7.532830       37.67513       44.79094

Input/Output Error 153: Input file ended

   In Procedure: get_nest
        At Line: 2947

      Statement: Unformatted READ
           Unit: 55
   Connected To: ../DATA/RegCM/ATM.1996070100
           Form: Unformatted
         Access: Sequential
Records Read   : 11904
Records Written: 0

End of diagnostics

========================

2 Supposed for Nested run DATA/RegCM is linked with ATM.1996090100 (which contains data for whole month i.e. 120 time steps or upto 1996:10:1:0) and if I set IDATE2 =1996100100 in icbc.param following error arise. ICBC file is generated but data is missing for 1996:10:1:0 in the resulting ICBC file. However if there is link to ATM.1996100100 as well then this is problem doesn't arise.
Now, why it is not enough to link/run simaulation just upto 1996100100 ( which is contained in ATM.1996090100 file itself) in the source/driving RegCM?
............
............
ifc -tpp7 -O3 -cm -w -w90 -w95 -o ICBC ICBC.o cdc6hour.o era6hour.o -L../../Commons/env/liblinuxold -lnetcdf -ludunits -Vaxlib
NREC =       289280
NSTART,NNNEND:        71221       71225
IDATE1,IDATE2:   1996093000 1996100100
Note that rotated Mercartor (ROTMER) projections are not supported by GrADS.
   Although not exact, the eta.u projection in GrADS is somewhat similar.
FERRET, however, does support this projection.
READ IN fields at DATE: 1996093000 from ATM.1996090100
GLONMN,ALONMN,ALONMX,GLONMX =
   47.13818       61.51401       102.7002       113.4036
GLATMN,ALATMN,ALATMX,GLATMX =
-4.366865       7.532830       37.67513       44.79094
READ IN fields at DATE: 1996093006 from ATM.1996090100
READ IN fields at DATE: 1996093012 from ATM.1996090100
READ IN fields at DATE: 1996093018 from ATM.1996090100
READ IN fields at DATE: 1996100100 from ATM.1996090100
../DATA/RegCM/ATM.1996100100 is not available
please copy (or link)ATM.1996100100
=======================
Will you pls let me know how to fix above problems.

Regards
Jagadish