Norton Power Eraser (NPE) could not remove the boot.cidox infection. The Norton Bootable Recovery Tool (NBRT) did remove it but the guy that I helped later emailed me to say it is detected again by Norton 360. I haven't actually seen the mesage he is getting but it sounds, by his description, to be the same message I saw on his computer when Norton 360 initially detected it after I installed 360. Does anyone know how to truly eradicate this virus? Could it be that he is going to a particular web site that gets his computer infected?