i downloaded spysubtact and ran shredder.  It sad nothing was infected.  when I scan using spy subtract ther is always always two or three things that come up when I open Netscape or internet explorer.  I cant figure out how to remove them.  I delete them using the spysubtract and they are gone but every time I open netscape or explorer, there right back.  Even if I open netscape or explorer and close it right away.  one of the things that consistently appears on spy subtract after I open the internet is doubleclick.net.  I succesfully removed newdotnet but it didn't seem to do a whole lot for me.  Any suggestions on removing the rest of these?

 

thanks