I have an Nvidia 460GTX graphics card and ever since replacing my power supply and reformatting a couple of months ago, I get sporadic nvlddmkm.sys BSODs. They don't happen often and sometimes can go weeks without happening, but it always will. I have tried the various remedies like completely uninstalling my Nvidia drivers but that did not resolve the issue. I am wondering if this could actually be a hardware problem. Could my graphics card be on its way out? I haven't had it happen when gaming though, its usually when doing simple web surfing. Before it BSODs, Windows will freeze for 30 seconds and an nvlddmkm error will be recorded in the Event Viewer.
Any ideas? Should I replace my graphics card or does this sound like purely a driver issue?