[solved ]framerates slow down

[klownk]

With a Geforce 7950 GX2, AMD64 Dual core 4200+ , in 1280x760 ??

It's really a soft problem.

The game runs very fast all the time until I exit office or storage room.
The first time I enter the big room with the map and the dogs, the game runs fast. After I enter the storage or office room and come back in the big room, I have 3,4 fps until I enter storage or office room again.

Even with all effect down, in 800x600, the game, only in the big room THE SECOND TIME (not the first), has 3 or 4 FPS...