for those of you using Internet Explore on Windows XP, you might want to consider copying and pasting the following from the the START-RUN line:
regsvr32 -u "%ProgramFiles%\Common Files\Microsoft Shared\VGX\vgx.dll"
This fixes a exploit in IE. Microsoft has not patched this yet. Check out an article on it here: http://www.pcmag.com/article2/0,1895,2020256,00.asp
Better yet switch to Firefox for your web browser; thats what I use!