Windows 7: Problem with splinter cell conviction

hi all i have a problem with tom clancy's splinter cell conviction .......
when the game tries to start it gets a black screen then it crashes to the desktop
i dont know why is that ... the pc passes all the requirements and its running on Windows 7-32 bit
i even hav a laptop that doesnt pass any of the requirements but can open the game .............. why is that?????

Try to replace the new medicine.