I have a desktop machine and it is been installed with Windows 7. I have replaced my graphic card and installed ATI Radeon 4350 HD. It worked fine for quite few days and now I am not able to work well with thing. Please help as my system leads to crash. I do not know what could have been causing this. I just want to get rid of the issue and let my system to work very well without any issue. Hope to get a better solution which will let the implementation to be processed and work well. I doubt that my system is been affected.