Radeon Shaders Broken.

[joevenzon]

And what does glewinfo say for the framebuffer object part?

If glewinfo shows it as available but VDrift doesn't, you might try compiling a small test application that just initializes glew and checks whether or not GLEW_ARB_framebuffer_object is true. That's what both glewinfo and VDrift do, so it's odd that glewinfo would say it's true and VDrift would say it's false if they're using the same GLEW library.