Might seem like a crazy suggestion but when something like this happens i generally create a new User account and see if the problem exists there :|, You might want to give it a shot
I was just asking whether he had a slow system or not…
Earlier my icons on desktop used to disappear too when I had 128 MB RAM and had many programs running in the background!!!
And how do you know it is a virus that is doing that? It may be due to corrupt system files… :no: