Hello guys..  I have problem when i star gaming in vista... The problem is that when i start playing i play ~30 ~40 minutes and then game froze and show's me a message in the screen "Display Driver Stopped Responding and Has Recovered"  .. I try tryed reinstall drivers .. but nothing.. I saw too much people in google with the same problem .. Can be fixed somehow ? I realy like'd Vista .. or i must go back to the Xp? Tnx you
 
BTW.. if is needed .. VGA: 9800GX2 CPU: Q9450 RAM: 4GB  
 
Thanks.. and sorry for bad english

Which game? Have you checked if there is a patch for it?

I tryed 2 games .. Crysis and Assassin's Creed .. And i didn't search for patche's becouse i saw other people with other played games that have the same problem :{

Are you getting the nvklmnmn or something like that error? If so, i had the same problem, after hours of updating patches, checking for solutions, and even thinking it was my video card, what i found was it was a bad piece of ram in my system, i rma'd it and once the new stick arrived had no more issues. I took out one stick and then ran aqua mark, sometimes it would make it through the first pass, but never the second, although with the other stick it made it through just fine, anywho give this a whirl, with only 1 stick at a time, if you keep getting the nvidia driver has failed error with one and not the other, your know what it is. Dont rely on memtest, i tried that app multiple times, and it never failed, but with the aquamark test i could get the error to pop up.

overheating???

No im 100% sure it is not overheating .. blacksci man i get only one error .. only that in the thread.. I dont get the nvklmnmn error ..

The 9800 GX2 is quite new, and it's running SLI out of one slot it's bound to have some problems, also is your motherboard SLI certified, if it isn't then that's your problem. Even though the GX2 is a single card it uses SLI to run both cards at the same time.

What card were you running before, and did you have the same problems ?

My old card was x1300 radeon .. i changed all my old pc and buied new components .. and didn't use vista before i buy them

brendano257 wrong ..  BTW .. thats error don't show only in 9 series .. 7-8-9 .. all in vista :[  

When you installed vista did it show up as supported in the approved hardware list? Sometimes Nvidia is slow coming out with decent drivers, especially where vista in concerned. I bought my gts about a month after it came out, and vista didnt recognize the card for about a month and a half later. But i would still check the ram, just to make sure that isnt the cause. After rereading your original post of the problem, it still sounds eerily familiar to what i was experiencing, and anything is worth a shot.