how do I switch the graphics option on my gateway nv79 notebook computer?

[tomtomC]

how do I switch the graphics option on my gateway nv79 notebook computer? I have an issue with crashes while playing certain games online on my comp. I've checked the games to make sure that I meet the requirements of the games. It also crashes sometimes while I'm watching movies or videos

 

[COLGeek]

Does your NV79 have a discrete video card installed (ATI Mobility Radeon™ HD 5650 or ATI Mobility Radeon™ HD 5470)?

If so, you should have an option in the BIOS to disable the on-board Intel (Intel® GMA HD) video adapter. Have you tried to do that yet?