I downloaded the Browser Hyjack Blaster and it stopped my AdShield from working properly. AdShield stops the pop up stoppers. Plus the it identified the Google tool bar as a problem in the alerts. It identified things and I clicked yes to have them removed not knowing that it was looking at the function of other programs as a problem. There also was a problem with the splash ad of the program hanging. I am using Windows XP. I did a restore to get the functions on AdShied back.