Nvidia control panel: Installed games not showing

I've been doing some reading about this and it seems fairly common but no
common fixes beyond guesswork. I have several games installed and only one of
them shows in the Nivida control panel, under Program Settings. The game in
question is STALKER - Clear Sky. I also have Far Cry 2, GTA 4 and several
others installed but these do not show. They of course are present when you
untick the box "Show only programs found on this computer". Since I first
noticed this I have installed several driver updates and am now running 180.84
but the problem persists.

Any one else getting this? By the way, I can add other programs that are not
present in the provided list, which was a different issue some users reported.