UI and DXlevels fucking up

I was getting hl2.exe errors last night on startup, so i tried fixing it by putting -dxlevel 80, and this happened:

my graphics are pretty much stuck at dx8 and the spawnmenu and main menu are really screwy. I haven’t had this problem before, i tried updating my video drivers but windows keeps claiming they’re for a different version of windows whenever it try updating them.

I doubt it’s actually driver issues, my other games work exactly as they did before gmod messed up, gmod’s the only game affected.

Any ideas?

I see. I had kinda the same problem.
And as normal, I don’t know how I fixed it?