yep finaly found the problem cause on my case.. just look the picture, somehow the lower part of my lcd frame is bumpy a bit.. after i check it(open monitor frame) the case itself is wraping & stick something on bottom lcd that says "dont touch" and seems very teriable.. #just make sure open lcd frame slowly & carefully if u decide to check [IMAGE]   [IMAGE]
i have a problem on my alienware laptop when im pressing start screen is black (no signal) and there is 2red and 7 blie light on alienware button  allso beep sounds 3-2-1 so anybody can help me i dont have idea what to do 
15 R4, 2 red 7 blue beep