Alright, so I went to play Gmod earlier and Steam started throwing up an error saying "Game not Available." So I exited and restarted Steam, and it seemed to perform an update. Well after this large update (took a couple minutes instead of the usual minute or less), it showed I had no Steam games installed. Thing is, I've checked my folders and everything is still installed. So I let it reinstall Gmod. Ran it once it was finished, and it doesn't see any of my custom content. I'm guessing its thinking everything is installed to a different folder, but I can't find this supposed folder where it feels Gmod is installed. I can't post in the Steam forums yet, waiting for an admin to activate my account, so I thought I'd post here, see if anyone else has had a similar issues. Now several hours back, but still today, Gmod was running fine. But since then it won't work.