I too been upgraded to the supid lines and clutter, so how did you get rid of the lines between messages? If you alrewady answered this a million times and provided a link to answer my aplogies.
OK, just been forced to upgrade to Office 2003 including Outlook Pro.
Spent 20 minutes getting rid of the awful lines between messages, trying to get rid of the Navigation Pane at the bottom and generally putting things back to how I want them.
Then, I noticed the icon in the System Tray. A quick Google search showed that Mr Gates had once again taken control of my PC and I can't remove it, whether I want to or not!
Why is M$ still insistant on taking over peoples lives. Why can't they just build OS's that help you do the things you want instead of trying to tell you how to do it?
If they think people are so stupid they need to be lead by the hand, why not bring out one version for them and one for those that know what they're doing - perhaps call them Office Home and Office Professional!!
Anyway, is there anyone who can tell me what the registry hack is to get rid of this useless icon?
Cheers, Robert.
(Luckily I use OpenVMS to do proper work)

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic