When you launch CMSF after installing a new module, you should get the eLicense registration dialog box.
When you install the Marines and British Forces modules, the Paradox DRM/copy protection software is no longer an issue since the actual executable gets replaced with an eLicensed version of the game. You may need to contact Paradox's customer support for more details on getting the Paradox version of CMSF running. You may need to disable or possibly even uninstall these programs. This software may object to certain programs that are installed such as CD/DVD drive emulators, etc. I'm not sure what sort of DRM/copy protection that Paradox uses, but I believe it is disc based. Also, run the installer and the game as Administrator by right-clicking on the executable/shortcut and selecting "Run as administrator" from the popup menu. When you install the game I HIGHLY suggest that you temporarily disable any anti-virus/firewall/internet-security application that you're running (Windows Firewall doesn't need to be turned off). If this runs then I assume you have basic OpenGL functionality which should be sufficient for CMSF.
Once you've installed the drivers that you want you can download and try out the FurMark Benchmark/stress test.
I suggest using Driver Sweeper AFTER running the Nvidia uninstaller, but BEFORE attempting to install another set of drivers. There is nothing specifically better about it compared to the 185.85 driver, but it does NOT have some of the OpenGL bugs of the 191.07 driver.
For CMSF I would recommend the 186.18 drivers (the last WHQL driver of the 180 series). Since it can save you a lot of time you would otherwise spend troubleshooting crashed OpenGL apps, OpenGL Extension Viewer proves to be a useful tool, which can be used by both beginners and highly experienced people.What Windows version are you running ? It still sounds like an issue with the video drivers. The response time is good, yet it also depends on your PC’s configuration, running better on new machines than older ones. The computer’s performance might be hampered from time to time, especially during the performance test, yet this is not reason to panic, as it is quite normal. The tests offered by this application can assess the functionalities from OpenGL 1.1 to OpenGL 3.1, and you can combine screen resolutions, texture LOD bias, multisampling and effects such as PBuffer or fog. You have the possibility to manually test the performance of your graphics renderer using the tests provided by OpenGL Extension Viewer – if you experience lags or slowing down of the PC, you are advised to choose a lower resolution for your screen. Each of these values affect the performance of your PC’s rendering ability, so a better graphics card, along with more RAM modules could significantly boost your PC.
This software utility analyzes your PC’s hardware and software, and provides you with details regarding your graphics renderer, such as the DirectX version, the shader model, the OpenGL version and driver version, as well as the renderer model and adapter RAM. Not only does this application display information about your OpenGL 3D accelerator, it also allows you to explore and view details about the extensions, while offering PC experts the choice of disabling them. To make sure your PC is fully equipped to run your chosen programs, you can give OpenGL Extension Viewer a try, so as to avoid wasting time downloading and installing programs incompatible with your computer.
When running certain types of games or even some sophisticated screensavers, you might get an error message from Windows stating that the machine cannot render the said applications.