My laptop screen shows up random black spots, what can be the cause? Its a sony vaio, NVdia graphics. Recently the screen has started flickering, that too randomly. please help
This is most probably a hardware problem, and we can't help except for the usual banal suggestions of updating the display driver.
I would take this laptop to a qualified repairman, or if it's still under warranty then call it in. There is no miracle cure for such a problem.