Amnesia The Dark Descent Demo problem

[Thomas]

Okay, so I get this straight:
- The game runs fine
- The startmenus run fine.

But when you press J or Tab (to enter Journal or Inventory) a mouse cursor pops up but it is not possible to move with the mouse.
- What happens when you press Escape or Tab when in a menu?
- Does pressing Escape and entering main menu work when playing the game?

Say if I not gotten something correctly.