Hey jonaco,
it's no wonder Apple is turning a blind eye on this problem: The only real solution is REPLACING the logic board, therefore causing a lot of expenses ...
Guys, really - you're running really expensive hardware and we've been writing about this situation in many places all over the net. The info is out there - so find it and use it. Throttling your gfx card with gfxcardstatus is only a lame workaround, since it'll take away power from many of your programs and you can't run an external display. The only way here is to DEMAND a new logic board - ASAP!
Here what I wrote on another thread:
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MBP - apparently only the Mid 2010 ones (due to the GeForce nVidia 330 gfx card) - crashes from every other day to multiple times a day: Sudden "black out", hard reset will turn up a Kernel Panic "NVRM[0/1:0:0]: Read Error".
Most likely cause: Defect 330GT graphics card & software driver issue that brings the problem out.
Software Fix: Downgrade to 10.6.3, or use your MBP in Intel gfx only mode (using gfxCardStatus). Apparently, this isn't a real fix, just a workaround.
Real fix: Get your logic board exchanged! This has proven to be the only REAL solution to the problem. Everyone facing the above mentioned problem got it solved by a logic board exchange.
Thoughts: The problem could be caused by huge chunks of thermal paste cloistered all over the graphics cards, kind of hindering the heat sinks from doing their work properly. GFX card overheat is a known issue with the nVidia 330 cards. Some people actually took their fresh logic boards, removing the paste applied by Apple, then applying their own paste properly. Quite obviously, this isn't something you could wholeheartedly recommend, since it'll most likely void your warranty.
Now, the thing that keeps me worried: Will my new logic board work fine from now on, or will I have to face the same Kernel Panics again in a couple of weeks or months? Let's wait and see what others report who've had their boards exchanged ...
"
You'll find the thread here: https://discussions.apple.com/thread/3114550?start=150&tstart=0
Stop waiting hopefully for a software fix - it won't happen! It's proven to be a hardware dysfuctionality ... go and get Apple to change your logic board.