Character spins whenever I move mouse (Have not found any fixes)

[plutomaniac]

Steam, from the Humble Indie Bundle Sale. I am currently using Windows Vista

Do a file integrity check and update your graphics card drivers to the latest version.

Also, If I go to the desktop while playing Amnesia, the mouse cursor gets stuck in the upper-left corner of the screen and doesn't move, the only way to fix it is by restart.

As Leonin said and found, there is a fix for that at the troubleshooting guide.