driver stop responding

whenever i launch crysis or cod 4 or nsf prostreet n play like 5 mins, my game hangs and gives me the error "Display driver nvlddmkm stopped responding but has succesfully recovered"
i have zotac 8800gt amp with the 169.25 i deleted n installed it back the it still hangs i checked my gpu temp its around 51 C
the weird thing is few days back i was playing crysis for hours it didnt hang
i have vista ultimate 32 bit
please guys help me i cant play those games more than 5 or 10 minutes

too little ram

turn off back ground programs and/or closer browswers and check the ram usage in task manager

spead task manager accross your screen when you crash check it

ram usage is 1534 after it crashed so should i get 1 gig more or what should i do

If using Vista AND gaming 3GB is the min for RAM. I bought 4GB and Vista sees 3.5GB, not bad. But it could very well be a resource problem. When I used to play Hellgate London, the game ITSELF would use 1.5GB of RAM. Which is just about hitting the RAM limit for once proces in windows 32 bit(2GB). Try playing with very low settings and see if it crashes, could be specific setting as well. Could also be a backround process Antivirus etc. Go to task manager and end everything under your username except explorer.exe and taskmgr.exe

can u give me the link for update ?

I know exactly what hes talking about

sadly I cant find the update but if you automatically update it should have downloaded, but personally it does nothing.

The game shuts down and says it recovered with nvlddmkm as the driver. I think they are fixing it with SP1