Quote: If you're talking about the fixed function effect, then what a coincidence... The same on my computer... Did I mention, there is a GeForce 7800 GT running in my System...
i have the same one (GeForce 7800 GT OC) and i get the shader to run fine...i believe you had to move one vertex down by a few quaints in one of the corners of the terrain, this should fix the problem