When your spam filters are working really well, and yet your inbox summary scrolls by a full screen or more whenever your mailbox is polled, and your mailbox is being polled every 1-2 minutes, you're in e-mail scroll mode.
I've been in that mode several times lately. My apologies for any delays in replying, it is (as the local traffic announcers say) "just congestion due to volume".
These are my first two books: X Power Tools, a thorough guide to the X Window System (O'Reilly, ISBN 9780596101954) and Fedora Linux: A Complete Guide to Red Hat's Community Distro, a practical hands-on book on Fedora (O'Reilly, ISBN 9780596526825).
Fedora Linux is also available for online reading through Safari and in downloadable PDF format from oreilly.com