I have recently been experiencing some unsual problems with my Exchange 2003 performance. I have a Windows 2003 Server, running MS Exchange only. My clients are MS Office 2007 pro. This set up ran flawlessly for 2 years however about 2 weeks ago random users are locking up when starting outlook or when attempting to print from outlook, or open attachments. ??? Has anyone experience a similiar problem, could it be due to a recent update?