Sorry for the late reply, but which virus is this? Does it have a name? What are the symptoms you see on the screen? Do you happen to have the latest Flash player from Adobe? You can
download it here: http://get.adobe.com/flashplayer/
Also, what version of Windows is installed and do you have the latest version of the McAfee software? Check at Microsoft Update if your version of windows is up-to-date.
You could also do a online scan here.
Hope this helps...