DOOM 3: BFG Edition

DOOM 3: BFG Edition

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Graphic problem. Can't play. Please help
I have bought Doom 3 BFG a few days ago.
When I start the game it returns me a blank light grey screen. I hear the music and the sound effects, it indicates that the game runs properly, but I am totally unable to play.

These are my specs:
OS: Microsoft Windows 7 Home Premium
Model: Dell Studio 1749
CPU: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz, 2400 Mhz, 2 cores, 4 logical processors
RAM: 4,00 GB
Graphic card: ATI Mobility Radeon HD 5650, 1,00 GB 800 Mhz DDR3 RAM
Native resolution: 1600 x 900

Please help!
Thanks.
Dato lagt ut: 6. mai, 2013 @ 1:24pm
Innlegg: 3