So I bought Company of heroes on valve the other day for £6.99 and a hour later they released the weekend deal of offering all the CoH games for £5 -_- *fail* Anyway, before I bought CoH I played the demo to see if it would work on my laptop and it ran perfectly fine. However for some reason it does not play fine on the paid version of the game. on the first level the only thing that is visible is the background (I can still control the men but can only see silhouettes of them). So not only am I annoyed that I could have got all the games for a fraction of the price I paid for one but the game I did buy fails to work properly despite the demo running fine. On top of this I also bought Portal 2 considering I loved it when I played it with my friend. It was running fine until when I went on it today I seemed to be stuck in a wall. I couldn't move or resart the level, just stuck in the wall and that is my save point too. Is there a way of resetting my position? Is there any way of fixing this or am I doomed to a bad first impression of steam?