Problem accessim postgreSQL 6.3 in a win95 machine via ODBC

Hi all ! 

I'm from Brazil, so sorry for my bad english!!

 

My Problem: I have installed Postgresql on LINUX and PostODBC from Insight version 6.40.0003 on I386 (Win95). I `ve build a connection, so I can acces from Win 95 to the SQL database server, but:I can only read data from databases, and when I would like to update a table, or include a register to a table, I get an error message: ODBC FAILED !Connection is readonly.. 

 But when i try to change the table (insert a new field, for example) I did not have problems.When I try to use Linux client, all operations works fine. (pgaccess, psql)So is there any configuration file, where I can tell the system the permission ?

Or is there anything else to do ?

Thanks.
Edilson Carlos Belluomini