First, ask your question in the body of the message, not the subject.
One reason I can think of for seeing the messages on the PDA but not Outlook
is because you're downloading the messages via POP directly to the PDA,
bypassing Outlook altogether. Then Outlook goes to look for the messages,
they're not there because you've already downloaded them to the PDA. Since
you supply virtually no information with which to diagnose the problem, I'm
only guessing.