I have asus g74sx, it has Nvidia Geforce GTX 560M video card. I've recently bought the Benq XL2410T LCD monitor. When I first started it, it was working great. I was able to use DVI to run my games in 3d. I restarted my computer and now DVI works on start up, and will show the screen briefly if I unplug and plug it back in. Also when I plug DVI in my laptop's monitor turns off. So both screens go black when DVI is connected, Vga works find. Anyone know the solution?