No, it has only happened in this game. I used to play WZ2100 on another computer. I *assume* it would work fine on it but...yeah, the computers not operational now...
OK, so I can assure you, there's nothing wrong with your very very expensive graphics card. which is basically a good thing right?
The bad news is that since an updated driver didn't cure the problem, and since the 8800 series use other drivers than other GeForce cards, it might be that there are some very big compatibility problems between the new series of drivers and WZ2100.
But, Since we cannot yet confirm that is is a graphics card related problem (although the symptons do imply this.) We're kinda stuck here. To further rule out the possibilities of non graphics card related problems, you can swap your videocard with another one. Use one of a friend or family member if you haven't gotten any at hand. Just make sure the drivers are correctly in-and uninstalled. If the problem is gone, The 8800 is what's causing the problem. If not, there's probably something wrong with your installation of warzone or with your install of your operating system and it's drivers. In both cases a software reinstall could possibly cure the problem. respectively: a complete reinstall of warzone (make sure all old file are removed prior to reinstalling) Or a complete clean OS install.