Event ID: 7031

Does anyone have any ideas why after years of running uneventfully we might suddenly be getting Event ID 7031 that shuts down the Navision sevice? We’re running native Navision 2.50 one a server that only runs Navsion, Symantec Virus scanning, Veritas Backup Exec and PC anywhere host. All four have been running for years on this machine without incident and now every few days the service just stops. We have new hardware on the way and the only changes recently to the system have been the Microsoft patches. It has me stymied and I’m afraid I’m losing the last of my hair over it. It’s not a pretty sight. :-> Any thoughts?