14.51 drivers are for Windows XP.
You want the 188.8.131.5232 for now.
Keep an eye out for newer drivers coming soon - with Intel's release of Haswell around the corner, driver updates should be expected shortly.
There are some rather nice WHQL 184.108.40.20606's available from here :-
These are the upcoming drivers for the Haswell based HD 4600 too, and they have a new control panel and fully support OpenCL 1.2 also (as well as nice performance boosts and fixes for many games)
I assume these drivers will be released officially by Intel soon, in time for the Haswell launch.
The latest and official driver for Intel HD Graphics 4000 is version 220.127.116.1132 and this is available at: