The first patch for horror game Amnesia: The Dark Descent has been released, fixing the major issue those with X1000 series video cards had -- not being able to play.
Besides that, there's a load of minor bug fixes and changes, one of which improves load times.
Grab it at the source or via the digital distributor you purchased from.
Update: developer Frictional Games says the mod tools have also been updated to reflect the changes, and on a related note, they've seen greater interest than anticipated. Check out the modding forum to see what's kicking.