Chosen Solution

Upon wake up, intermittently there is video distortion on the bottom 2/3’rds of the display. This state lasts from a few minutes to many hours before randomly returning to normal. pic here -> http://bit.ly/9EAXgP While this condition is present, I can connect to an external display, and the external display is normal and does not display the distortion. Genuis bar scanned for the Nvidia recall, but no error codes were found. Wondering if this is a bad LCD, bad inverter board, or bad logic board, or just a bad connection between one of those items. Any help / suggestions on how to figure this issue out specifically would be much appreciated. Thanks, Scott Update I have a replacement cable but have not yet installed it. A good smack to the bottom of the MBP fixes the display issue (temporarily) so I haven’t got around to the cable swap yet.

Since you have good video with an external monitor I would think your logic board is good and this does not seem like a inverter problem to me. I would open the computer and check connections to the LCD. If all appears good I think I would replace the cable from the logic board to the LCD first. (less expensive) If that doesn’t work you may have to replace the LCD. Go slow one step at a time and by all means get a second opinion before replacing the LCD. Ralph MacBook Pro 15" Core 2 Duo Models A1226 and A1260 Display Data Cable Replacement [linked product missing or disabled: IF185-133-1]

Well my temporary fix lasted me two years. I wouldn’t mess with it unless forced to. I got my cable in today - will update with results once I install it.