I saw this yesterday it has nothing to do with the versions – it is the check box in the time zone window for daylight savings time.
Modify it by:
Double clicking on the time in the users system tray.
Click Time Zone from the top tab
Check the box at the bottom that says: Automatically adjust time for daylight savings time.
Thats it! It should fix everything retroactively and going forward! Don’t you wish everything was this easy!!