Hi gents, So the FMC seems pretty solid now with the latest Hot Fix butafter several hours the ND becomes non responsive.Can no longer monitior progress of my flight path.Also unable to zoom, switch screens, etc, etc. So I thought I try one more thing.I switched to the 2D panel and see every thingis working fine in there.After that I flicked back to the VC and noticed the ND displayWAS BACK TO NORMAL.I was able to continue my flight. I haven't checked it over yet but I think the First officers displays have no problems.So can this be a conflict between the Captains Displays and the 2D Panel ?? Anyway, I am able to carry on with my flight now. Cheers, Rick

Same situation when i make several change between windowed mode and full mode.