Just try reinstalling the previous version. Unless you have a GeForce FX 6800 card, there's probably not too much you need in the 61.77 drivers. You can download the old drivers from nVidia's site.
Title pretty much says it all. After installing the newest Nvidia drivers (61.77), my screen blinks whenever I right-click on video files. The blinking only lasts a second, but it's certainly annoying. Is there anything that can be done to stop this other than uninstalling the Nvidia drivers?