I have not messed with laptops much except for doing clean installs on the OS's. I am having one given to me tomorrow and they tell me the screen needs to be replaced. They tell me when they turn it on all they get is a black screen. I am wondering if maybe the hard drive may be what is bad. I have no experience at what the problem may be. If it is the screen being bad. My question is are they expensive to replace and how complicated would it be to replace one. Thinking this one might be worth fixing. The OS is a Windows 7 Professional.