I noticed a problem after recently deploying NOD32 v2.5 in our environment. I have replicated an issue that after installing NOD32 AV client, Outlook 2003 will no longer close correctly. This is happening on computers configured in cached Exchange (i.e. laptops) but I have not noticed the problem on any of the dekstops. This issue has occured on several different models of computer, so there is no common thread on the hardware. Also, Outlook was patched with the latest SP and Windows XP has all the latest patches and device drivers. In fact it happens whether or not the OS and drivers are updated. I can repeat this problem and correct it by closing NOD32 completely out and then Outlook will open and close normally. As soon as you engaged NOD32 (with or without EMON) Outlook.exe hangs and must be terminated with Task Manager. So I am pretty certain this is an issue with NOD32. Any ideas?