"We're sorry—you need to be running Windows XP in order to access this content."

In characters the same size as you see them here, Gamespot's DLX, has denied me the exclusive content for Dungeon Siege. Essentially, it appears I not only have to own the Dungeon Siege game and its "Legends of Aranna" expansion, but also have to be running Windows XP. It doesn't matter than I'm a Gamespot Complete subscriber. Can anyone explain this in a way that won't make me angry? I hope all five people that have XP, DS, LoA, and GameSpot access enjoy the patch.