My laptop screen has broken and I was just going to hook it to a monitor and pretty much turn it into a desktop...but when I goto VGA mode the resolution is always 640x480 and if I try to increase it the laptop switches to the broke screen. Is there anyway to stop it from switching and just using the monitor its hooked to? I know the monitor can display higher then that as it can with my desktop, I tried a newer monitor as well and it does the same thing. I am entered VGA mode through the start up screen. If I completely remove the screen and unhook it, it still tries to switch to it and switches off the monitor, none of the function keys will let me go back either