can use mouse in menus but not clicking

[Dododo]

Does anyone know what's wrong?

The on-screen instructions say that I should Left-Click to use or Right-Click to swap, in Inventory menu. But clicking does nothing.

And none of the keys do anything either. I cannot change my tool belt or even drop an item.

I've installed patch 1.1 already.

[Dododo]

OK, I reinstalled the game, and the patch worked too.