I can run Windows update and when I try and run Live update from Norton it tells me I have the lastest files. this has been going on for a couple of weeks. I have run the removal tool for W.32.serflog.a but it doesn't find it. When i run a system check from the Symantec site it tells me I have something called 'Adware.cdt'. When I do a virus scan it tells me I have 'PrevAdx.dll'. But I can't get rid of either.