IIRC, the current version of IE is two major versions higher (i.e., 10) as of April 2013, and it's slightly different from IE8. (The box in question is a sandboxed VM anyway, but it bothers me that I must pay the MS tax again, just to have their current browser for development.)
If you're just testing against IE for web development, Microsoft actually makes available tons of VM images with various IE versions available for free: http://www.modern.ie/en-us/virtualization-tools