Mouse moves to bottom-right corner on click of any button

[mephisto123]

I've got strange issue with the game.
Every time I click the mouse, the cursor jumps to bottom-right corner of the screen.
In fullscreen mode this bug affects both menu and the game itself.
In windowed mode it affects only the game itself.
In the game the cursor is hidden, so the camera just jumps to the floor when I click any of mouse buttons.

ArchLinux x86 (32bit), 2.6.35 kernel
Phenom II X2 555
GeForce GTS250
2Gb RAM
Standard USB 6 button mouse (left, right, wheel, 2 side buttons and a button near the wheel)

[mephisto123]

I've assigned "use" and "drop" to keys on keyboard so I can play the game.
The only remaining problem is what I still can't use inventory items and click on journal sections ><
Would be nice if there was possibility to use inventory items by keyboard (arrows to move selection and enter or something to use).