I have a few users who experience this:
The schedule a meeting and the invitees see that meeting as a different time than the person who scheduled it.
example: userA schedules a meeting for 9/12/06 8:00~8:30 and invites userB
userB see that meeting as 9/12/06 7:30~8:00
Both computer are on a windows domain and are set to Eastern Time Zone and are set to automatically adjust to daylight savings.