The end of the 9800GT?

I have installed a later driver, re-installed the boinc-client, detached and re-attached to the GPUGrid project and the majority of the work-units on the Linux machine are still failing. I am left with the conclusion that it must be a hardware problem as the card earned 160,065 credits before developing this fault. I assume that 24/7 operation is more than the Galaxy card can cope with in terms of heat dissipation etc ...
That was an expensive bit of hardware for a month's credit! To add insult to injury the vendor concerned has dropped the price of this card over $50 in a month, could be that they know there is a problem? I can't get the nvclock package to work as I was hoping to under-clock the card to see if that helps. I see other users are also experiencing failures on GPUGrid and SETI ... so will leave it for a couple of days and see if it comes right...

On the positive side the 1TB drives arrived for the RAID1 setup in the new Quad. Along with this is a GeForce 9400GT with a heat pipe and no fan. Hopefully this will last longer than the fan-cooled 9800GT.