Thanks for your reply gunslinger. This is an update cut and paste from another forum.

My laptop has been infected with a virus that i have got from a site called Win24.

I had no idea it had been infected (virus protection did not stop it) until i turned my laptop on yesterday. I was able to put my password in and see my desktop, but as it loaded up it froze. I was unable to do anythiny with it other than switching the power off.

Anyway, i started the laptop in safemode and was able to run a virus scan which picked up an infected file from Win24 (i think). After playing around and following some instructions from windows help i am now able to use my laptop. However, the performance is slower and i'm sure it is still infected. Evertime i load it up and run a virus scan it picks up the same virus and deletes it, but then then next time i re-start the laptop and scan the virus is there again. Also, a "thing" keeps trying to add itself to the start up programme: c:\windows\system32\drivers\ctfmun.exe which of course i block.

Anymore advise would be appreciated.