So I have a Dell Inspiron 15R 5537 laptop with Dual Intel HD 4400 and Radeon 8670M/8850M (not sure).
The graphics driver for the radeon card wasn't the latest, so I updated it from the AMD website. And then, every game I played seemed to shake and flash and stutter and whatnot. So I uninstalled the driver, and attempted to reinstall the old one. But this doesn't work. It says that the driver is already installed, but I can only use the Intel card now. How do I fix this?