Error Messages in Computer Management/System Tools/Event Viewer/System

Event ID 7019
Circular dependency: The vsdatant service depends on a service in a group
which starts later.
Event ID 7001
The TrueVector Internet Monitor service depends on the vsdatant service which
failed to start because of the following error:
Circular service dependency was specified.
Event ID 7017
Detected circular dependencies demand starting TrueVector Internet Monitor.

Loop occurs every second

I get "Protection is up, UI is initializing" hovering mouse pointer over "Z", and I cannot execute ZoneAlarm app.

OS Name Microsoft Windows XP Home Edition
Version 5.1.2600 Service Pack 3 Build 2600

Thanks for your help