I was going to follow the instructions before sending this mail, but I can't install anything as error message "The C:\Windows\System\Comdlg32.dll file appears to be corrupt. Reinstall this file and then try again" pops up every time I try to download any program. I run Hijack This but again a problem - it doesn't allow me to save log. If it doesn't sound like a lethal case, I can try and type out my log.
Thanks
Kat