RV: no updateable recordset

Hi,

I'm trying to access to a postgreSQL database via ODBC. I'm able to read
the data without any problem from VB on windows, but I can't update or
insert any record.

I have NOT checked the 'read only' option of the driver.

I'm using Postgres 7.1.2 on a SuSE 6.3 Linux, and the 7.01.0005 driver. But
I had the problem previously (with version 7.0.2 and an older version of the
driver).

I can insert or update a record from 'psql' or via the unixODBC driver
installed on the same machine.

There's another extrange thing, I'm not able to modify any record, but I
can do a drop table via odbc (so the table is not read only). I'm using the
visual basic sample VisData to do the test. I've read something about a
msysconf file or table, in the logs I see the following:
>> Relation 'msysconf' does not exist'

>>conn=152710432,
SQLDriverConnect(out)='DSN=test;DATABASE=test;SERVER=server;
>>PORT=5432;UID=postgres;PWD=XXXX;READONLY=0;PROTOCOL=6.4;FAKEOIDINDEX=0;
>>SHOWOIDCOLUMN=0;ROWVERSIONING=0;SHOWSYSTEMTABLES=0;CONNSETTINGS='
>>conn=152710432,query='BEGIN'
>>conn=152710432, query='declare SQL_CUR095D0040 cursor for SELECT Config,
nValue FROM MSysConf'
>>ERROR from backend during send_query: 'ERROR: Relation 'msysconf' does
not exist'
>>conn=152710432, query='ABORT'
>>STATEMENT ERROR: func=SC_execute, desc='', errnum=-1, errmsg='Error while
executing the query (non-fatal)'

Does this mean that my databases should contain any tables to allow odbc
(write)connections? Can anybody help me?

Thanks in advance,

Manuel Martínez Valls