Dear Anubis,
Perhaps there is a language barrier and you're not understanding correctly. My Windows 8/10 PLUGIN FIX fixes PLUGINS not loading. It doesn't FIX any other Windows 8 or 10 related issues. Only PLUGINS (.dlls in your /plugins folder that are loaded by rasadhlp.dll) are affected. If you have mouse issues, resolution issues, DPI issues, vsync issues, scriptGL issues, or graphics drivers problems - the PLUGIN FIX will probably not help. It is not a 'fix for all things windows 8/10'.
IF you are using the old pluginfix EXE, switching to the pluginfix REG might cure some issues associated with the old, bad EXE fix, but imo you seem to be having some other graphic related problem that neither will help. You may be using the standard MS video drivers, and may need to update them from your manufacturer, or you may need to try older versions instead.
Maybe even a fresh install of Windows 10 will fix your problem, i dont know. It's up to you to decide how far you're willing to go to try to fix it.
You can always try changing your video card or rolling back to Win7, if your machine is having trouble with Tribes maybe its just not cut out to run Win10 anyways (the 'minimum requirements' are total bullshit imo and you need a modern system to run 10 properly).
Sincerely
Gruvles McButt