Mike,
It's purely a function of OE. MAPI doesn't have methods to tell it go out and actually check for, download or send email. All you can do is put messages into the Outbox and see what's in the InBox. OE handles the rest of the transport of the email in/out.
>I'm using Express... Do you mean it does the download when you control OutlookExpress using the MapiSession, MapiMessage OCX or OE itself?