pgadmin save password

Hi, I've a problem with pgadmin. If I access to database with user X
and I save password, when I access to database from shell (psql)
password is not required. Of course pg_hba.conf is:

local database X md5

If I don't save password in pgadmin, it's ok (psql required password).
The question is this: is it possible that pgadmin save password also
for psql? And where pgadmin save password?

Thank you