We're using Version 7.0. By the way, here are the exact messages I'm getting in the Systems Event Log:

1) The eTrust Antivirus Realtime Server service terminated unexpectedly. It has done this 1 time(s). The following corrective action will be taken in 600000 milliseconds: Restart the service.

2) The Service Control Manager tried to take a corrective action (Restart the service) after the unexpected termination of the eTrust Antivirus Realtime Server service, but this action failed with the following error:
An instance of the service is already running.

These two error messages just repeat over and over every day. But I have contacted tech support, so hopefully I'll hear back from them today with something useful.