I wouldn`t consider the 8800 as a particularly unstable card.
It`s increase in sales may co-incide with the release of the likes of Vista, and combining drivers issues and so forth may flood the `net with traffic that might indicate that the source of the problem is the card. I would extremely doubt it.
As Kemp says, and he`s got a wealth of gaming stuffs, to be outlining 1 game as an issue that sticks in his mind is a great commendation.
Drivers are getting better all the time too