Is anyone unable to aim in CS:GO?

You think that's bad. Not only can I not aim I can't even play the game!
Support keeps saying stuff about me having to actually buy the game first. Pfffft. Useless steam support as per usual....

That happens to me if I use Steam Overlay between missions or during the loading screen. Try avoiding overlay or disabling it and see if you still have the problem.

During the free weekend this happened to me.

I was going to say press escape twice, but that sounds like it doesnt work for you

I had the same problem during the free weekend. Shame, too, because otherwise the game seemed to have potential, but after 30+ minutes of trying to play with a friend, and never being able to, with it happening to both of us, it turned us both away from getting it.

Yes, that happened to me, during free-weekend, when I was trying to play a private match with a friend. Everything worked properly when I connected to a public server (in the same session). It's really strange. It seemed to occur multiple times and then fix itself later on.

Yeah i've been playing since the beginning (after release i bought it) At the beginning to was worser than now now you can aim a little bit but i play alot with the sniper so

I play this game since start of the cs;go beta. And I have only had this problem a few times, it happens mostly when you alt-tab or chat during the game. The only fix is restarting your game.