HTC T-Mobile G2 User Manual page 182

182
Only some of your account's recent email is downloaded to your
phone. To download earlier messages in batches for IMAP or POP3
accounts, touch Load more messages at the bottom of the list of
email.
User's Guide
An unread message.
A previously read message.
Messages are color coded
according to the account
to which they were sent.
Email
T-Mobile G2