Hi, Ron-- Yes, thanks, I am having some issues. This is a new computer, about two weeks old. Avast found a rootkit a few days ago, but claims to have eliminated it. I'm not so sure. Shortly before my old computer died MBAM stopped running and everything I tried to do to get into it was blocked. For that reason, added to what Avast found, added to some strange behaviors of various programs, I decided to download Chameleon just to have it on hand in case anything happened to my MBAM. When I was first setting up my new computer I was using Firefox, which began doing very strange things--windows were popping up all over the place (I did have pop-up blocker activated) until there multiple windows flying open and snapping shut all over my screen. I uninstalled Firefox and ran several scans, found several infections, and to my knowledge everything was eliminated. The rootkit showed up several days later. I just have the feeling something is still in there, and a particular AppData file keeps being associated with problems. Does any of this make anysense? Just to forewarn you, I'm also on an OS learning curve, having just jumped from XP to 8.1, so... Not doing too bad, though!