WinXp SP2[ w/XP Firewall-[added Prevx to "exceptions"] avg 9.0 Free malwarebytes free spyblaster 1gig Ram 3.5 Intel Processor I have tried 2 reinstallations of my registered, licensed Prevx 3.0 with Protection [ only SafeOnline is not included] & I cannot get the Infection Monitoring or Realtime Protection to kick in. Scanning works fine. Sometimes when I open the Prevx interface, it suddenly disappears, same goes with the system tray icon. That icon does not show up at bootup nor does the splash screen, though I have them both configured to do so. Each time I configure, the message tells me I must reboot & the changes will be enabled , but nothing occurs on reboot. I have Self-Protection at "minimum" setting, by the way. One more item: my System Event Log repeatedly shows the error below. The time always coincides with my entering any changes in Prevx or running a scan. No corresponding event in Application logs. Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7000 Date: 2/23/2010 Time: 2:53:28 AM User: N/A Computer: JOYARTFUL Description: The CSIScanner service failed to start due to the following error: The system cannot find the path specified. Program files shows only a folder containing the Prevx executable. I can't figure out what's preventing enabling protection. AVG & Malwarebytes & of course, Prevx all show no infections. Please..any help would be appreciated.