Dell Latitude XT2 Tablet PC "f4 light" Questions

...start up. I am running a Dell Latitude X2T and i can get no response from it. The lights above the F4 and F5 keys and the caps lock come on and screen never powers up. I had the same problem and was ...

...displays (built in screen/eternal monitor/both cycling between the combinations on my HP it's the f4 button). If you cannot get this to work it is a problem either with your m/b or less likely ...