I just buy new laptop name: HP Pavilion dv7t-6100 CTO Quad Edition Entertainment Notebook PC ! (vga radeon 6770m 1gb),every thing seem be okay but i can't play any game use OpenGL ! so laggg,such as: gta 4 ! max setting or low setting still lag and stuck,i try to update driver in hp website,i try to install amd mobility display driver 11.9,11.12,12.1,12.4a,but still lag,my bios is f1b and i change switchable graphic to fixed mode but it cant help !!!! wth,what can i do??? what version i can choose to play gta 4 or any game use opengl smoother !!!! plz help me... p/s: sorry for my badddddddddddddddddddddd english !!!