I didn't make it!
Call of Duty and Call of Duty2 both work fine but when I start CoDUO I get this error message (invalid shader type in file 'shadertypes/2d/scope.stype') and UO closes. I've tryed a reinstall but it did no good. Dell XPS GEN 5 2GB RAM ATI RADEON X850 XT PE video card INTEL PENTIUM D CPU 3.00 GHz
reinstall your graphics driver, then reinstall cod and uo all at the same go.