I have a new Dell Inspiron 1525 with vista.  I have system mechanic installed and AVG installed plus all my security on my vista is on. When I ran a scan of system mechanics is says I have a spyware parasite on my computer, but when I click on it to remove it my computer shuts down and I get the blue screen. AVG has not detected it and vista security says there is no spyware on it.  Sooooo what do I need to do?  Thanks  Judy