[dmethvin]

On the Windows side, there was a lot of tense discussion between Intel and Microsoft regarding Intel's popular integrated-graphics chipset being shipped at the time of Vista's release. The chipset didn't have hardware DirectX support and shouldn't have been certified, but Intel had promised their customers (like HP) the chipsets were fine and they were not anywhere near the end of the product lifecycles for either the chipset or the PCs. So Microsoft fudged the rules and a bunch of consumer-grade hardware ran like crap on Vista.