I've been using Hammer for quite a while and i have an error i'm not quite sure how to fix: While compiling a TF2 map, Hammer and the compiler itself stopped responding and crashed seconds later. I then tried opening hammer and was surprised with this: http://imgur.com/Lu4exzN As you can see, the 3D view seems fine, but the 2D views have only pink and light blue colours. The crosshair in the 3D view seems to be pink as well, and i can't manage to fix it. This has also affected my TF2 in a weird way: http://imgur.com/a/mgFZH (4 Pictures) It appears to happen in all maps, and there is also a weird light glitch on the bottom right corner of my screen. Thx for reading and if someone knows if there's something i could do please tell me.