I Have an Acer Aspire 5720-4171. It doesn't have a screen due to being dropped. Ive been using an external monitor for about a year now. I decided it was time to clean up my files so I did a Factory Reset using the alt+f10 option during boot up. I guess the system restored but I wouldn't know because I can't get the external monitor to work and I can't see the laptop screen. I Tried booting in safe mode and I keep getting a message that windows cannot install in safe mode and to restart the computer. Anyone know how to get a signal on my external monitor? Or can anyone give me an idea of what's on my screen right now so I can blindly click around and try to fix it...?