It means Norton Anti-Virus is the likely culprit causing the disk I/O activity. Try deactivating NAV and see if the problem doesn't go away. If not, try uninstalling Norton utilities, you will have to use their uninstall routine and then go to the Symnatec web site to find out how to remove the files the uninstaller leaves behind.gulliver said:Thanks.
Norton showed bundle bit error with memory management - so fixed and then solved.
Re-occured today. iPulse shows navx active on memory swap... zero page ins and 260-450 faults.