Currently Being ModeratedOct 7, 2012 10:04 PM (in response to Paul Ireson)
You have one of the MBP with the NVIDIA defect unforunately (GeForce 8600M GT).
The scrabled screens are the GPU overheating and failing.
Apple had a repair program that has now ended.
You can still try making a genius bar apointment and asking about a flat rate repair or take it to an authorized Apple service provider.
Currently Being ModeratedOct 8, 2012 6:56 AM (in response to Power-PC)
Ah, thanks... I think I might actually have had that replaced under warranty a way back, though I'm not 100% sure. I'll check with the Genius Bar as you suggest, but I suspect any full-rate Apple attention might make a replacement a more attractive option, cost-wise