I have a Windows XP machine with service pack 2. I have recently installed Symantec Antivirus version 10.1.5.5000. When I try to open Microsoft Dynamics SL the computer Reboots without error. I have looked in event viewer to check for some errors and found nothing. This problem began after installing Symantec Antivirus. When i disable Symantec the problem stops. Has anyone experienced this before? How can I get this problem to stop.