Hey guys, Recently my computer has been hit with the nvlddmkm.sys error. Basically the screen blinks black every few minutes and then finally the monitor dies on me and requires a reboot before I can use my computer again. I have found a temporary fix, by deleting the nvlddmkm.sys file in System32 > Drivers. After rebooting my computer however, the Graphics Card Update rolls back as if I never installed the updates. I have a GeForce 9600 GT and the latest driver version is 196.21. That's the update I try installing. Basically, if I don't delete the nvlddmkm.sys file, it won't roll back but I will be persisted with the error. If I do delete it, I must re-install the update every time I reboot my computer. All help appreciated! ~A.