My PC was infected with spys yesterday( as i was not having spyware). so i downloaded spysweeper trial version and removed all the spys. i also scaned for virus and found 2, which was also kicked out. but my wallpaper is becoming blank. i cannot use desktop option from system. or cannot change my wallpaper. its like my wallpaper is the background and blank background is the wallpaper. can any one help me?