Creating GLSL objects fails

Hey there, When I wanted to pick up a sleeping project I ran into some problems. I'm making a simple multithreaded engine in C# using Tao for the OpenGL magic. The development PC runs Ubuntu with up to date NVIDIA drivers supporting Opengl2.0 etcetera. Loading the extensions also works, using:

if(GlExtensionLoader.IsExtensionSupported("GL_VERSION_2_0"))
			{
				System.Console.WriteLine("\tOpenGL 2.0");
				GlExtensionLoader.LoadExtension("GL_VERSION_2_0");
			}
			else
				throw new System.NotSupportedException("No opengl 2.0 support");

This shows the message I would like to see, namely "OpenGL 2.0" If everything is initialized the render thread starts its draw main loop, which calls a particle emitter, which checks if it has an initialized shader and if not, tries to make a shader object:

			program = Gl.glCreateProgram();
			
			if(program == 0)
				throw new System.NotSupportedException("Seems like shaders are not supported, failed creating shader program ("+Gl.glGetError()+")");

And this Exception does get thrown and if I switch some orders so glCreateShader is called first, that also failed. Things I've checked: - The same problem occurs if I use the ARB variant - This code is run in the renderer thread - I'm pretty sure opengl has initialized correctly, IE, I already see a window popping up and if I disable the exceptions the program runs but without the shaders. Any ideas I could try?