Hi Jack, And be sure to use Internet Explorer when you do it helps to get the whole article.
And there is a couple of other things that might help explain this a bit better
A podcast by Susan Bradley = http://www.acidplanet.com/artist.asp?podcast=1453
Support WebCast: The impact of daylight saving time on Microsoft Exchange Server and Microsoft Office Outlookhttp://support.microsoft.com/kb/932046/en-us
I hope these help with the problem and it also helps if you have all of the Windows Updates and service packs installed.