I installed Windows 7 on my friend's computer, then installed drivers. There was no problem until I installed nvidia graphics driver. After bios and windows loading screen, screen becomes black. I'm sure that I am installing the right driver, his graphic card is geforce gt 130m. And I downloaded the last driver from Nvidia's site. I reinstalled it by opening the computer in safe mode, after it didn't work, I also installed an older driver for this card. Same thing happened. How can i solve this problem?