Hi,  the video on my 3400c seems to have suddenly gone crazy!

The 'book was sleeping when I went to use it this afternoon.  I picked 
it up and opened it, it woke up and the display was fine.  I carried it 
(slightly open) to another room to plug in the power adapter.  I set it 
down and walked across the room to check something.  When I 
turned back the display was a mess!

I tried rebooting, reset button in the back, and even checked the 
connection between the logic board and the video ribbon cable.
The display alternates between a series of thin multi-colored vertical 
lines and a white background with three wide yellow stripes down 
the center.  

I hooked up an external monitor and everything is fine.  Though that 
gives me a blank display on the powerbook, not mirrored video.  

Does this seem like a damaged screen or maybe just a bad ribbon 
cable?  

I've put a new hard drive in the laptop before but how do i 
disassemble it enough to get the screen apart?

Thanks.

Tom

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