nvlddmkm stopped responding in Windows Vista Vista

Googling around I have found this to be a very common problem for vista users with nvidia drivers!

Classic symptoms; Screen blacks out for a few seconds then comes back with a balloon saying " Driver nvlddmkm has stopped responding and fully recovered "
Well it didnt exactly fully recover, my game is now laggy as hell and I have to restart my computer to make game fps smooth again.

At first i thought maybe my power supply wasn't giving enough juice... No because a 500 watt power supply with a dedicated 36v rail sand a head room of 200 watts to blow should really OC this card nothing flat but its this damn driver situation Is really really messing things up for me here! >: O

Exactly what can I do to possibly fix this? I run the card at stocked settings since the drivers throw a fit when i OC it. Iv let it run at stock settings ever since I got it but now that the driver is NOT working right even at stock settings is setting me off.
And i though I heard ATI drivers were the ones that had more problems, LOL; where in the world did i hear that?

Welcome
Not a "wise guy answer" but my feeling for all OC situations; dont OC. That being said maybe the Driver must be updated
Drivers - Download NVIDIA Drivers

Well aren't you just everywhere Rich? I should just add you to my Windows Live Chat so I can ask you for help anytime something goes wrong cause you have been the one thats answered most my questions. Remember me :D

Anyways I havent OC'ed the thing for sometime now. Its a EVGA card with a software that lets me OC so that its much much more safe then doing it via the Bios and never have to restart the system.

The drivers are all up to date and have been for sometime. I check periodic to make sure and plus WoW makes sure to tell me everytime I log in xD

-- Edit Just installed some newer drivers fron the nvidia website instead of the EVGA website (this might make a diffrence)