The CPU shows ekrn.exe is using 87%-97% of the CPU when doing a scheduled scan of the files on the computer. There is an option under On-Demand computer scan > ThreatSense engine parameter setup > Other > Run background scans with low priority but checking this option has no effect. The priority of ekrn.exe in the Windows task manager still shows it running at Normal priority. How do I get the scan to run at BelowNormal priority? I can't really use the computer for anything else when ekrn.exe is using all of the CPU. Using XP SP3 on a 2.4 ghz Intel P4.