Large Objects

I'm working on a project with large objects. I'm getting this error:

    Can't call method "Pg::PQlo_creat" on unblessed reference

Here is the code it is choking on..

    $conn = Pg::PQsetdb('', '', '', '', $$SD{'database'});
    $lobj_Id = $conn->Pg::PQlo_creat($mode);

Let me know if you have any ideas.

Thanks in advance,

David