Thank you for reading and responding to my post.
Yes, I have uninstalled/reinstalled my video drivers, but it made no difference.
I will explain what happened while running combofix. Even though I disabled my security program, a message came up saying it was still active. Now this was a mistake, but I decided to shutdown my laptop, mainly because I thought it would complicate matters if i continued (talk about irony) once I logged back on to windows, my wallpaper had disappeared and the background was black. When I clicked on my documents, the folder icons had disappeared, but the names of the files remained underneath.
I tried running system restore, but it was unable to load. I then decided to run combofix again, but this time i let it run straight through. It managed to find a file called "C:\Qoobox\Quarantine\C\test.txt.vir". Once it had finished, i noticed my wallpaper had returned and so had the file icons.
The majority of my media files are from youtube, but i have just played a dvd and the picture quality is fine. It is the flv files that appear blotchy and blurry.
Edited by Infinity80, 23 June 2009 - 08:14 PM.