[gunsmoke]

I have just downloaded COD from Steam. I get the opening titles, Epilesy warning and Home page ok . When I click on single player training or missions all I get is the sound of the game and my monitor just shows the Steam games menu. Anybody able to offer any help.
I have Vista Premium 64 bit. AMD Phenom 9850 quad core processor 4.0 gb.
NVIDIA Ge Force 9500GT Graphics card.