Am having problems. Computer is slow, sometimes doesn't want to go into 'sleep' mode, sometimes blank or garbled screen, unstable screen. Virus got in even though Avast running, regular Malwarebytes checks, spyware blaster running. Downloaded Immunet - it found several problems (incl Trojan) but in the end it slows down so much that the computer gets hung up and the scan doesn't finish. Ran Dr Web CureIt, in safe mode, earlier and it found nothing. Can you help please? Thanks!