I have been using my cell latitude e6400 for long but yesterday I was watching a movie,at night suddenly it fell down from the bed,I picked it it was working normal and continued to watch the movie,but later on it popped on a massage that there some issues that I want to restart,in some seconds in front,which I did but since now it turns on but the screen it blank, it's doesn't even show those dots rotating only the windows logo where by am using windows 8.1 please I need help it will later show that massage in the picture