I recommend Green Man Gaming if they still have Steam keys for about a dollar.

I can't remember exactly. I think it's cause you don't have the right .PAKs in the right folders. Make sure you have PAK0, PAK1, PAK2 in the id1 folder. One of the PAKs you will need to copy from your steam/GOG version of the game.

Just downloaded the correct version of HL with the intent to start speedrunning it, but I can't change any settings through the menu. I can't click the menu buttons. The game works, but I'd like access to the menu.

I've had this issue before with cs 1.6. When I launch the regular Half-Life from steam it doesn't have this issue, though.

I know this isn't an issue in windowed mode. Anyone know how to launch in a window? Launch options aren't available afaik.

Also, is playing in widescreen a possibility?