Laptop starts and boots, Can hear it going through it's operations. Works fine with an external monitor. Was acting up for a while before it failed (wiggling monitor or opening/closing screen would fix) Am assuming an issue with the cable/ribbon from laptop to screen? Haven't attempted to tear into it or disassemble it, as I have no service/manual for it, and don't want to thrash something else in the process. Any hints/tutorials/access to service/repair manual would be greatly appreciated. Thanks Joe