I have a Dell Inspiron N5010 laptop which has ATI Mobility Radeon HD 5470 dedicated graphic card. I faced 2 problems with it. First 1 is while installing the driver for the graphic card, Catalyst Install Manager fails to install and whole driver package installation fails. Second 1 is while running a program called Guiminer (I want to use it for Bitcoin mining), it says OpenCL.dll device is not found. How can I solve these 2 problems?