Data Source in RDS Dataview times out in FlashBuilder 4

[core009]

When I expand the Table icon in my oracle data source in RDS Dataview, after a few seconds, it dispays 'Read Timed out' error.  However I am able to retrieve data using the RDS Query Viewer.

Here is the entry in myapp.xml located in C:\lcds\tomcat\conf\Catalina\localhost.

<Resource name="jdbc/myoracle" auth="Container"
              type="javax.sql.DataSource" driverClassName="oracle.jdbc.OracleDriver"
              url="jdbc:oracle:thin:@vahpdv02.server.com:1631:SOXDEV"
              username="sox_owner" password="sox123" maxActive="20" maxIdle="30"
              maxWait="-1"/>

Any ideas?