I have been using MSI CX640 laptop and I did not had any issues with the same until now. Today I have found that the nVIDIA Geforce GT520M Graphic Card is not getting detected by the laptop. The other Intel HD3000 on board Graphic Card is working fine. I have checked out for GT520M in the device manager and it is missing from there as well. Does that mean the integrated card has turned faulty??? Is there anything that I can try out??