laptop screen not working on swithch on

hi i was wondering if any one cud help me i have a medion md9783 notebook pc when i switch the power on i can hear it loading and booting but no screen i aslo have tried ms dos disks xp setup disks ive also tried using my desktop monitor still no luck

 

Either A)your backlights off, or B)your screen is shot.

 

You screen may be set to a different out put than the lcd or the vga. You'll need to somehow find out. I know this doesn't help much but now you know that most likely problem.