Strange graphical bugs (video included)

[Wicket]

I'm new at this but I do enjoy this game - everything is fine until I get to a room with four arms (I cheated) and did get out. But the room was full of lights and shadows and very difficult to find even the rotation device to turn to get out. Did get out. Then ended up in the room with 3 barrels but it also was so full of lights, spectrums, and shadows I couldn't locate the circles that were supposed to be on the floor. Please help. Anyone? I downloaded the update, the patch and the drivers for the Radeon 9550. This game is very enjoyable but I cannot get out of this room with all the lights.