I have a W500 4058 CTO Windows Vista 64 bit machine I bought back in January. The graphics card hasn't been functioning for about the last month and I thought it was related to some hard drive issues I was having. Lenovo shipped me a new hard drive on Monday and I installed all of the available updates from Windows. I downloaded and ran System Toolbox and it confirmed what I knew through the device manager - There is a Device Driver problem and Windows has stopped this device because it has reported problems. (Code 43). I downloaded and installed the device driver separately through the Lenovo website, but it didn't fix the problem. Does anyone have any suggestions? Any help would be greatly appreciated.