Nvdia video cards and black screen crashing

Have serious problems with black screen crashes.  Play Lord of the Rings Online game.  Had an 8800 video card that broke completely after 13 months in a new computer. 

Replaced that with a 250 card 8 weeks ago that started black screen crashes after 6 weeks.  Local computer shop cannot find the problem. 

I am considering biting the bullet and buying a Digital storm value computer. 

Then I saw this quote in the customer support Lord of the rings forum and it scares me.

“Defective GPUs (from manufacturing) or severely worn GPUs (from use over time at high temps) cause the black screening issue. Running any processor hot for a long time will wear away at the non-conductive areas between traces and microscopic transistors. This causes anything from crosstalk to downright shorting and can cause all sorts of issues. For us experiencing the black screen issue, it's most likely a problem with the GPU incorrectly communicating with the RAMDAC, otherwise known as the NVidia Input/Output (NVIO) chip on Series 8 and later video cards. The NVIO chip (used to be built into some GPUs) is responsible for syncing to monitor refresh, handling dual-link DVI, HDMI, TV outs, etc.

GPUs are designed to be 100% stable within a wide heat range (when new) and within a specific speed range. They have safeties that shut them down when reaching a predefined internal temperature. But processors degrade over time, and with well-worn GPUs, they can become unstable at higher temps.

What you're seeing as progress in lowering your GPU temps is just prolonging the inevitable. If your GPU cannot run stable within its thermal range, then your GPU is well worn (i.e.: permanently damaged). This happens naturally over many years of use, or in much less time with frequently running it hot or over clocked.

Digital storm uses Nvidia video cards and I fear the black screening occurring again.

Lotr forums say the game is not causing the crashes but it uses parts of the card that weaken it and then card starts black screening till it goes completely bad like my 8800 card did.  My black screen crashes started in game then occur out of game and at idol now.

Are any Lord of the ring Digital Storm computer players experiencing black screen crashes in game or out of game with Nvidia video cards?  Are any Digital Storm computers having black screen problems?