My mother's MBP ("Core 2 Duo" 2.4 15" SR) has suddenly developed an annoying issue, and shes freaking out. 1. After the grey startup screen (apple logo) the screen goes black (off). If i connect an external display i can see the desktop. I have tried resetting PRAM as well as SMC. 2. The keyboard has a stuck key(or keys) which causes a beeping noise once the login screen appears. This makes it impossible to use and startup key combinations. All I have to do is tap a key (literally any key) and the noise stops. at this point i cant tell if the 2 issues are related. im assuming that since the display works fine during the grey screen, i dont have a hardware issue. any ideas?