I have, by some means, downloaded a trojan virus which replaced my background with a big red 'YOUR SYSTEM IS INFECTED', left me unable to use the task manager, and bombarded me with spyware protection ads. Although avast! was able to fix the latter of these problems, I am still plagued by the first two. I was searching for a solution when I stumbled across a forum created by another user with an identical problem. Anyhow, I followed the instructions and I have attached the two files as requested. Thank you all for your aid, and a good day to you.