I never liked thoe buttons.
I used this on my 109Es
0.400,0.400,0.400,Ambient
0.600,0.600,0.600,Diffuse
0.000,0.000,0.000,Emissive
0.200,0.200,0.200,Specular
20.000,Power
But for some reason I ended up using this on my 109Fs
0.259,0.259,0.259,Ambient
0.659,0.659,0.659,Diffuse
0.000,0.000,0.000,Emissive
0.408,0.408,0.408,Specular
33.420,Power
Try either one out. I'd suggest starting with the first one.