My 2006 MBP (A1150) developed a sudden display problem of diagonal blocks across the screen. I could see the desktop, etc faintly behind the lines but shut down anyway. After a 24 hr. rest, I booted from CD and things seemed normal...for about 15 minutes. Now, this MBP will not boot at all so I need to remove HD to get at contents as an external. I might like to repair and pass it along to a nephew if it's not too expensive. Question is: Inverter, LCD screen or logic board problem and is it worth it?