COPY command problem

[cbb]

I'm using ver. 7.4.6.1 from a generic install of Fedora Core 3. I
always get "permission denied" error when using the COPY command to load to
a table from a text file. I'm logged on to the db as Postgres, have file
permissions set to RW-R--R--, and it is located in /tmp (also tried putting
it in the Postgres home directory). I am able to use the insert command
successfully on the same table, so it's not a db permission problem. Any
suggestions?

Thanks in advance,
Michael