(confused look @ RJARRRPCGP) Trotterwatch I'm with you.
I'm not sure how variable fan speed on a geforceleafblower errr geforce FX could lead to fan failure, but I would probably stick with the 45.xx refercence drivers for now Nvidia has been doing some shady things lately (forced optimizations, reducing image qualitly for speed, while the consumer thinks they have set the card for max qualitly)
as for ATI, I very good friend of mine had to RMA a 9800Pro that was less than a month old because the fan quit and the chip let out the magic smoke. Possibly ATI in their quest for minimal cooling with as quiet a fan as possible has shaved one corner too close again, and put a crappy fan prone to failure on their card. IMHO ATI Radeons own pretty much anything comperable Nvidia can put out, but pretty much the first thing I do with any ATI card is upgrade the cooling solution.
Looks at sig and sees both machines with Geforce... errrr they were given to me, and I'm not gonna look a given (free) horse in the mouth.