Show me exactly what you are doing.
I would hope you are staying away from CSV and using tab delimited data.
And study this page:
[link|http://www.postgresql.org/docs/8.1/interactive/sql-copy.html|http://www.postgresq...ive/sql-copy.html]
Note this text:
Do not confuse COPY with the psql instruction \\copy. \\copy invokes COPY FROM STDIN or COPY TO STDOUT, and then fetches/stores the data in a file accessible to the psql client. Thus, file accessibility and access rights depend on the client rather than the server when \\copy is used.