Further to the meeting discussion, here's more of my thoughts on lack of VT-d support.
Many of the myriad Intel CPU SKUs lack various misc features (without much rhyme or reason IMHO).
Many CPUs specifically lack VT-d support. Notably, in the i7 line, the "K" suffix CPUs lack VT-d.
See: http://ark.intel.com/products/52214/Intel-Core-i7-2600K-Processor-%288M-Cach...
look under "advanced technologies" and you'll see VT-d is "No".
I'd check once again on both your invoice and in the BIOS to see if your CPU # ends in a K and/or if your CPU # when looked up on Intel's site has "No" for VT-d.