Experienced similar behaviour with the combination of Norton Systemworks 2004 and Beyond Divinity w/ patch 1.42. May have something to do with scheduled tasks in Norton or it may not. I've had two "internal error" messages pop up. Followed the error message thread back to the Symantec site and reinstalled Systemworks. Am on the second reinstall and have played BD for about 5 hours - so far so good. The only "funny" business that I've noticed in BD when the error message appears is that it may correspond to items suddenly going missing from my inventory - on the first incident, a shield went missing; on the second, a small water crystal went missing.