If you have a known reliable driver version, please post it in this thread. Please mention the OS and which specific card or chipset you are using. If possible, please give the URL to the official manufacturer driver download page.
Those that have played with me know that I used to crash... A LOT! Well, right now things are rolling smoothly with my setup again. I'm running Windows XP, with an nVidia 8800 GTS, but the drivers I'm using now are a set from a site called Omegadrivers.net. -> NVIDIA (Omega 2.169.21) is the set, and the url is here -> www.omegadrivers.net/nvidia_winxp.php
I don't know if they'll work for you, but they worked for me
Old Man Bloodless: Hardcore Dex Assassin ready for Phleg! Old Man Merciless: Hardcore Str Assassin ready for Phleg!
RoCK's Bard: Hardcore Bard ready for Phleg! RoCK's Slinger: Hardcore Slinger ready for Min!
Old Man Steele: Strong Assassin DOUBLE DEMIGAWD for Maladomini (with 100m XP and counting)
On linux, I can difinitively say that using the latest drivers, if possible, is almost always the best way to go (the only exception is if there's a bug). This is in contrast to windows, where older drivers often outperform newer ones on older games/cards. Also, if you're an ATI user, it might be a good idea to try out the radeon (not fglrx/ati-drivers) driver and see if it'll work with your card. :-)
Just got my Ubuntu 10.04 and Nvidia drivers working after 3 hours of work.
I have Nvidia Geforce 9650m gt. Using older 173.14.22 drivers with new 195.x.x.x Xorg settings because driver versions 180,185,195 didn't work.
EDIT: Testing version 195.36.15 again with new Xorg settings and system seems to work now: Xorg PowerMizer Performance Level has to be 3 to work without crashing, Nv Clock: 550Mhz, Memory Clock: 400 Mhz.