In Revit MEP 2013 Getting Display Flickering error. when error geting the saved work will be lost. revit patched with latest revit updates also haveing latest nvdia driver. please see attaced screenshot
Are you using multiple displays? Unfortunately Revit and multiple displays are not a happy couple.
If you're using multiple displays:
In your Windows-Control Panel-Display Settings, check which display has the "Make this my main display" checked. Revit wants to be on the main display, because this display will be the one with full hardware support on the video card.
So whichever display you want to use Revit on, make that one the Main Display.