Virus scanning does not always catch spyware that has hijacked your system. I got this from another post that seemed to clear up another's issue with improper navigation.
Go to
http://www.spywareinfo.com/downloads.php#det
Download "Hijack This!" [freeware] or download direct (below):
http://www.merijn.org/files/hijackthis.zip
If you get a 404 error or Access denied, try:
http://216.180.252.218/~spywareinfo.com/downloads/tools/hijackthis.zip
Unzip, double-click "HijackThis.exe" and Press "Scan".
When the scan is finished, the "Scan" button will change into a "Save Log"
button.
Click: "Save Log" (generates "hijackthis.log")
Next, HijackThis | Config [button] | Misc Tools [button]
Click: Generate StartupList log [button] (generates "startuplist.txt")
Next, go to the below location:
http://www.spywareinfo.com/forums/
Sign in, then copy and paste both files in your message.
HijackThis Quick Start Help
http://www.tomcoyote.org/hjt/
The Tutorial if you want to know more about the results or the .log file.
http://www.merijn.org/htlogtutorial.html
--
Hope this helps
--
Elizabeth Chubbuck [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.
I'm still getting prompts for unsuitable sites when I
start typing web addresses into the address bar. I
followed mowerman's advice on this, updated my protection
and did virus scans etc (I have norton antivirus).
However, I'm still getting the prompts - anyone know how i
can delete them ?
Thanks.