"Frozen" Menu?

I have reinstalled Garry’s Mod about 10 times now, I’ve deleted the .gcf and the Garry’s mod folder manually, but I keep coming back to the same problem. The thing is, IT USED TOO WORK.

Too the problem, every time I launch Garry’s Mod, it works fine until I click a button, the window pops up behind the menu, whenever I try to load something, you still see the menu and windows that I’ve opened, then after join the server, I crash. This didn’t start happening until I deleted fire.vmt and a bunch of “fire” files in hope of seeing the fire in gamemodes I’ve been playing (IE: TTT.)