"Turning Left" Camera Problem

[Diosniio]

Please help me!

Since the beginning my camera rotates to the left slowly. And when I alt+tab, the mouse stuck on superior left of the screen.
I've try to change the SDL.dll to v1.2.15.0 on library BUT the problem get worst and faster!
What can I do?

PS: I have some Graphic problems too. The web of blood that blocks my path have a with screen beneath it (exemple: 2015-01-06_00006.jpg).

My pc:
Windows 7 Professional 64bits
AMD Fx-8120 3,1Ghz
8Gb Ram
Radeon HD 7760

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Rotation Problem Solved:
https://www.frictionalgames.com/forum/thread-27630.html

(but not the graphic problem)

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rotation problem solved:
https://www.frictionalgames.com/forum/thread-27630.html