What does this mean????? video card problem !@?

sometimes when i play games it will freeze for a few seconds then it will bring me to desktop and this warning will come up



"the display driver nvlddmkm has stopped working and has succesfully recovered"



and this happens for almost all the games i play...is it because its over heating??

cause my video card is farely new Nvidia 8600M GT

i have a laptop|||nvidia issue. Update driver to see if it helps.



Nvidia.com. Could also be a power issue. Make sure that your PSU (that box you plug the power into) is at least 300W.|||Could be a problem with device drivers , hardware or software . This problem can be solved by uninstalling new softwares, updating device drivers and making minor configuration changes . From http://fixit.in/bluescreenofdeath.html