I am playing Payday 2 on a Lenovo y570 with an i5 processor and Nvidia 555m GPU. Normally, I am able to run games very well medium settings and Payday 2 should be no problem. Whenever i start the game, however, it does not run on the dedicated GPU but rather the integrated graphics card causeing and unplayable frame rate. I know it is using the integrated graphics because the activity monitor for Nvidia says its not running any programs. I have the latest drivers and have re-installed them multiple times, I have selected Payday 2 to be run with the GPU in the Nvidia control panel, and I have even set my whole computer to run on the GPU too. I am out of options and I have yet to hear of anyone else having this problem. Please help.