I recently installed Windows 7 64-bit on my HP G7 laptop with AMD Radeon 7400m series with Switchable graphics. No matter what drivers I use I can't figure out how to make it work. Under Devices it just shows a caution sign on the GPU. Error code 43. I understand it has 2 GPU's (an Intel one also?) but I can't seem to install the drivers correctly. I have been all over the internet and nothing I can find has helped me. Please help me in the right direction. Thanks in advance.