dump and schema

I have a problem with date default and schema's and don't know wether I am 
doing something wrong or not.

All my tables (more than 100) have a field datumi of type date default 
today, as this example:
CREATE TABLE tabel (    ....    datumi date DEFAULT 'today',    ....
);
taking a dump or a schema of this table via pg_dump and restoring or using 
it went fine

Now I am using postgres 7.4 and  making a schema (and also the table in a 
dump gave this result)
CREATE TABLE  tabel(    ....    datumi date DEFAULT '2003-12-10'::date,    ....
);

which is not expected for a schema. Even worse by restoring a dump, all my 
new records have this fixed date in the field datumi.
Something has changed? I do it in the wrong way?  Is there a solution ?

many thanks