ViglAlso another thing I've noticed is that whenever I try and change my settings or even change a crosshair while in a casual game, when I press ok it disconnects me out of the game? Very strange
Possibly something to do with conflicting HDR settings. I haven't had that issue, so if you could log your console with con_logfile console.log and then run cvarlist, I can check your CVar values to see where the problem is.
ViglAlso what is the reasoning on having mat_trilinear 0
Because disabling trilinear reduces the stuff the material system has to do for textures.