That means your graphics card isn't powerful enough to run shaders; it might not be able to run pixel or vertex shaders, or you might just need an updated driver for your graphics card.
dude i can play alot of shaders except for night, pirate sunset, meat wad silver, modernart, greenertia, etc. but i can play the blues, inverted, default(duh), meatwad desert, pirate gold, acid, ice, black void, and etc