Use Postgresql in VB

I am using postgresql as database server in my VB application. I use DAO(OD=
BCDirect) to connect to the database. It works with postgresql 7.1.x before=
.=20

When I upgraded the postgresql to 7.2.1, I found that the program does not =
work with the new version. The program gets DAO RecordSet from a query. Whe=
n it uses MoveFirst or MoveLast to move the cursor, error occurs with descr=
iption "Invalid Operation". Is the new version not supporting these method =
in VB?

Best Regards,

H George=20