My Outlook screen display reverted back to an old lay-out. I lost all my
e-mail for the last year. Calendar is gone. The last e-mail except for the
new ones downloaded are of 16 April 2006.

Outloook version is 6.00.2900.2180 and Internet explorer version 7.9.5730.11.

Could this be a calendar problem? It looks like 2007 changed back in 2006.