It's the new update to DirectX 9.0c. That's what your computer has been wanting, assuming it runs Windows versions later than Windows 98 and earlier than Windows Vista. This latest version contains all the bug fixes and performance enhancements they've ever published, so if you want to make sure your graphics engine is at its best, fire up Internet Explorer and head on over to the DirectX download page. You'll have to validate your copy of Windows is genuine, and if you're lucky, you may be invited into an exclusive beta just for visiting the page. Microsoft is revamping their website to use their new Silverlight technology (an alternative to Flash for Windows and OS/X computers), and you may be invited to give Silverlight a test drive.
[Via Pumping Irony]