I am on a Win XP computer that is receiving an interstitial "Insecure Internet activity. Threat of virus attack" page every time I open Internet Explorer 7, this is followed by a browser crash after between 1 and 5 minutes. This page also came up in Firefox 2 but after an upgrade to Firefox 3 I am now simply unable to open the browser before it crashes. I am also getting a popup that appears to be from the Windows Firewall, I am not sure if it actually is or not. This mentions the Win32.Netsky.Q trojan, the only button available is the Enable Protection button, the "Keep Blocking" button and the "Unblock" button are greyed out. I don't see any of these symptoms when in Safe Mode. Any help would be greatly appreciated, this is my girlfriends father's computer so I won't have access to it regularly, but will update as soon as possible.