I have a GeForce GTX 550Ti card and have been experiencing crashes on my PC. Not only that but get a temporary black screen before and after watching a video. Especially HD videos. My first though was PSU as the PC died with no blue screen. I've already bought a new PSU in case the problem is not resolved and will wait and see.
From the Nvidia GeForce Experience program, under my rig I selected view full system requirements which brought me to this page,link. Selecting the drivers tab I used the manual search selecting the series and OS. I installed the 314.22 - WHQL version 25/03/2013.
It seems my problem is fixed as no more crashes and no more flitting black screens prior to waching a video has happened. I've also hidden the Nvidia driver update in Windows update.
Just thought I'd post in case someone else is having similar errors.