Can you please help me...after I installed Nvidia Graphics driver (Nvidia GeForce 7300 GT) for my Windows 7, the screen blinks or flashes before the desktop appears (on the welcome message). I tried to install several drivers but the same problem occured....what should I do..Before I installed it, I saw in the device managaer that Nvidia GeForce 7300 GT is already installed....Can you help me??can you fix it??