actually, I think it would be better to delete them and make it again, and try to get the VM right, rather than just make a func_wall...
and omg, 90000, you dumb ass lol!
8192 is teh max, open Hammer, go to Map / Map Properties / Max Viewable distance
or
open gl, and actually change it to open gl, not just pretend that you did.
those are the only things that can cause that problem.