Go to documents/project reality/profiles check out default and other profiles video.con check resolution matches system resolution.
My Default video.con check the red one and change to match using wordpad - don't forget to save:
VideoSettings.setTerrainQuality 3
VideoSettings.setGeometryQuality 3
VideoSettings.setLightingQuality 3
VideoSettings.setDynamicLightingQuality 3
VideoSettings.setDynamicShadowsQuality 3
VideoSettings.setEffectsQuality 3
VideoSettings.setTextureQuality 3
VideoSettings.setTextureFilteringQuality 3
VideoSettings.setResolution 1824x1026@60Hz
VideoSettings.setAntialiasing 2Samples
VideoSettings.setViewDistanceScale 1
VideoSettings.setVideoOptionScheme 2
Run PRBF2 as admin and mumble and launcher
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