Also, changing AA in my video cards (CCC) settings did not seem to do anything, even when I made changes and restarted the program, (Garry’s Mod) in this case.
I thought I fixed that at some point in the past. Can’t promise anything, but I’ll look at it again.
A possible instant fix you can try yourself is running the games at higher resolutions to get a supersampling. Most Source games should run fast enough to make this a viable option.
I’ve tried it but internally it is maxed out at 1920 x 1080….I couldn’t get the custom resolution thing to work either. (When I tried to reset to the new resolution it kept crashing my display drivers) I’m on a laptop with 2 gpu’s so maybe that’s the problem on the resolution settings…