text: unable to change wallpaper!!? i am using win.2000 pro. my pc got infected with virus (don't remember the name).. since then i am unable to change the wallpaper of desktop..i don't want to format my hard disk.. what to do to get rid of it. please help!!! if you have a legitimate copy of windows, go to www.microsoft.com and download a (free) copy of microsoft antispyware.  microsoft recently bought out giant antispyware and now utilizes their engine in their application, making it one of the foremost antispyware packages on the market (incidentally, it is free.)