>If you change the Date/Time Properties for your computer, so that "Automatically adjust clock for daylight saving changes" is checked/selected, the Tools|Options|Preferences|Calendar Options|Time Zone "Adjust for daylight saving time" setting in Outlook 2000 also changes. Changing this setting in either place affects the other place.
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>This totally screws up existing appointment times.

I think you had the same situation last year. I alreardy heard of it. Was it you? Otherwise, I would be curious to know if the other person who mentioned it solve the situation.