Tomb raider Underworld plays fine for me but when I get to the Cracken area and go to the left in order to drag the cog off the spindle the game keeps crashing and I get a message. "A problem has occurred with your display driver. Your system may not have enough resources to run the game at the selected settings. You can retry using the same settings or adjust them to lower settings. make sure you have the latest drivers for your video hardware. And try rebooting your system to help clear up any issues."

 

Its strange how the game has been playing ok up till this point. What do I need to do with the tweaking settings ? 

Tweaked the settings and it seems ok now. 

Awesome!