I have been using ESET Nod32 since 2006 and going from V4 to V5 is the worst transition in versions! Why? I have a quad core, Win 7 with SP1 and I am showing extremely slowness with the ekrn.exe taking up and literally freezing my laptop when I jump tab to tab on Firefox, or jump between an open session of Chrome and Firefox. Or jump from Chrome/Firefox to Thunderbird. http://imageshack.us/photo/my-images/198/ekrn.jpg/ I noticed my HDD light going berzerk for anywhere between 15s to 1 min and the Resource Monitor will show ekrn.exe at the top of the CPU cycle. Switching back to V4, I show NONE of the slowness so I am not sure whats going on here with V5. Any help would be appreciated.