I'm running Windows XP Pro, SP2, and recently my Norton Anti-virus started showing that I was infected with a "Downloader". The pop up only comes up when IE is used. This showed up after getting a "pop-up" window for some anti-virus protection scheme supposedly from Microsoft. NAV can't delete, clean or quarenteen this file either in normal windows operation nor in safe mode. Do you all have any ideas as to how to go about getting rid of this file or infection?