My browsers being Hi-jacked

[Kev]

This is really hacking me off!!
Norton A.V. picked up a couple of trojans on my system,
couldn't repair them so quaranteened then deleted them.
I thought all was ok then my browser started getting
hijacked and I get the following pages showing:-
http://c.coolshader.com/download/index.html
C:\windows\dl.html
So again I do a full system scan with Norton and remove
the crap and also run Ad-Aware and Spybot and remove
whatever they found.....still happening!!!
Update all virus definitions run the scans in safe mode
(with system restore switched off), remove the crap and
guess what.....still happening and now no restore
points!!!
What can I do???? any help appreciated.
Thanks

 

[R. McCarty]

Along with the tools you mentioned, I also recommend/use
a couple of others.
CWShredder
HiJackThis
BHODemon
PestPatrol Online Scan
No single product will ensure that your system is "Clean",
because so many different types of threats exist.