Michael
I would get in touch with support to see if they can help through here http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=1875209&SiteID=2 and submit a sample to Microsoft here http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=662566&SiteID=2 thanks. I moved your post to the Anti-Virus folder and out of the off topic folder as you are using OneCare
chuck