Duplicate rows quaetion

[rgaskell]

I'm trying to get all duplicates from a table.
there are two columns that are the same, issueid and quantity.
When I run the following, I only get one of the duplicate rows, not all of them....

select issueid,quantity
from lot
where trunc(createdate)=TO_DATE('06/16/2003','MM/DD/YYYY') or
trunc(createdate)=TO_DATE('06/17/2003','MM/DD/YYYY')
group by issueid,quantity
having count(*) > 1


Any ideas how to retrieve all the duplicate rows?

thanks