Ah, yeah, it's basically saying that your graphics drivers don't like the game. Sadly, the game doesn't have detailed enough logging to tell me why the shader fails to load and compile exactly. It's a really simple shader, though, and if that doesn't work, I doubt the shaders used by the actual 3D stuff will work either.
I don't know if there's any reasonably easy way for me to fix it, but I'm curious since I haven't seen the shaders fail to load before. If you can bear with me, it would be nice to know which graphics card and graphics driver version you have exactly.