CompuServe Messages

PMJI, but i was experimenting recently with a tile bump map that had color gradations where the tile would curve to meet the grout. The problem i ran into was that the bump map itself would appear on the curved part, in other words, regardless of lighting conditions, the edges of the tile were gray. I used it with a texture map for the tile color and with bump settings from 1 to 15. What might cause this to happen? Steve Ormonde