I have a problem when I start Outlook 97 on NT 4.0 SP 6, it starts both OUTLOOK.EXE and MAPISP32.EXE, but when I check for email OR try to shut down Outlook, MAPISP32 starts running (its clock starts ticking in Task Manager) and CPU use goes to 100%. I can shut it down with Task Manager, but the system acts weird after that, and when I try to do a shut down or restart, it gives me a couple messages about ThorConnWndClass and WMS Idle cannot be shut down and do I want them to shut down? No, nothing new has been installed or nothing like that. This started happening out of the blue on an otherwise stable workstation. I have uninstalled and reinstalled Outlook and Office with no change in results. Any ideas why MAPISP32 is screwing up like this?