I can't open my task manager. I recently installed a new Nvidia Geforce 6200 video card and after that things seemed to not work like they use to. A friend told me to download the beta drivers not the non-beta drivers to try and fix the problem, it didn't. I tried reinstalling the driver, that didn't work. I tried reinstalling the older driver, that didn't work. If anyone could give me information or any ideas as to why my Task Manager does not come up that would be great.