Hi arcano
Welcome to the club!
I've made the material you can't make work and I've have had the same problem until for a couple of days ago!
Now the quick solution:
Make a image map in a clean white color and use it as texture for the material. Make sure that the texture scale is the same as the bumpmap!
The explanation:
Its a bit hairy but its because the material you attatch to a surface don't have any uv cordinates unless you use a texture map!
Now the problem comes if you want to use a bumpmap without a texturemap on the material because the bumpmap can't use the cordinates from the texturemap and therefore Indigo don't know where to place the map.
Am I right?? Anyway the quick solution works perfectly!
ARK