Having trouble starting GMod, most recent update (?).

A while ago GMod started acting up, I would open the game and it would stick at the startup background without anything else, stuck in 600x800 which I think was because I was troubleshooting. I left it as it was, considering it a lost cause, that I wouldn’t get to play it again or until the next update did something.

So to keep this simple, I’ll just list what I’ve tried.
Each of the following haven’t fixed the problem.

  • Deleting mods.
  • 2-3 clean installs.
  • The Direct X suffix, 80/81.

Each install seems to only be 150mB or so and it seems like it should be bigger.

I can provide more details if needed.