i have an acer extensa 5235 that has lost the plot. when pressing power button, green light shows up, fans are running and for a brief second I can hear the hard drive start to boot. but thats all it does. I have no display a.k.a the black screen of death, and from what I am reading on forums this is a popular fault with acer machines in general. bios I believe is to blame. the question I have is; is it possible to fix this issue without a usb flash drive? can anyone please give me some advice on this. I will be eternaly grateful.