Setup - Windows XP (patched Feb 23rd through Microsoft site) - Outlook 2003 clients (patched Feb 23rd through Microsoft site) - connected to Exchange 2003 SP2 (DST Patched on Feb 23rd) - some users have a BlackBerry (patched through the BB browser on BB's website on Feb 23rd) The first time shift in March 2007, there were no issues. Now during the second time shift in Nov 2007, some of my users are have their calendars off by one hour. I tested with 5 different companies and three of thefivecompanies accepted a meeting with the time ahead by one hour. Is it my email server or theirs? How can I test to see if my Exchange Server is patched? Please help. Thank you in advance. -Johnny

Johnny,I believe that there is a seperate patch for the fall time zone change that needs run on your Exchange server. This link may help...http://support.microsoft.com/gp/dst_topissuesMike

Mike ... thank you for the reply. I followed the video that Microsoft has put out for patching Exchange (instead of Outlook) and now some of my users now have intermittent schedules off by an hour. Not all schedules were shifted and it's random. Is there a way to reverse these changes? The patch did more harm than good. Thanks! -Johnny