Switching video cards crashes to black screen

Question

Owner of a MPB 6.2 from new, with an intel HD Graphics and an NVIDIA GeForce GT 330M, intel Core i5. OSX 10.6.8
Initially I had the screen going black with a few pixel white line on the top left part of the screen during the hot months of the summer, and I though it was just a little glich due to temperatures and due to connecting or disconnecting the power supply. But in the last couple of days, it has happen everytime, I connected/disconnected the power supply. I do not think the power supply is at fault, but as I connect or disconnet the PS it forces a graphic card switch and it goes black.
I use gfx CardStatus, so I know when it switches from the Intel to the NVIDIA et vis et versa.
Also with no PS connected, when I switch manually using gfx, forcing the MBP to run from only one graphic card, it just bring the screen to black with that little hazy little white line running half way through from the top left coner of the screen. The computer carries on working normally as I have noticed while streaming and it is just the screen going black.
The only way to bring back the screen display, is to do a force shutdown and a reboot, hoping that the card is not going to switch while doing important stuff.
In any case it is very annoying, scary, and a design fault of somesort from the factory.
I do not have any apple care, out of warrenty, and only in the last couple of days I can reproduce it systematically at every switch of card.
Is there any replacement scheme put in place for this fault? or what is the solution if any?
Many thanks in advance as usually.

Answer 1

Hello and welcome..
(yes I have many loaded)
Make sure there's enough space...
Connect your iPad to your computer. Launch iTunes. Select the Summary tab. Look at the bottom of the window for available storage space.
Carolyn