I get this error when using GSA, the code runs on my computer with an ATI 5850, I select the 5870 Cypress Assembly.
Internal compilation failure. Possibly caused by GSA not supporting a GLSL feature used in shader.
ERROR: 0:8: error(#132) Syntax error: ';' parse error
ERROR: error(#273) 1 compilation errors. No code generated
Here is the Fragment Shader code: http://pastebin.com/hpLxTJYs
It would be nice to get this working, because I am trying to solve why that code doesnt run on Nvidia and it takes time to move back and forth between actual hardware.