Huolong, we must be trapped in a warp field running havoc... :-) This is what I did right this minute: 1) started the PC Poser (emulated, but that should make no difference here) 2) applied some picture as material, saved it to the library, quit 3) deleted the picture 4) placed a completely different picture with a different name into a different directory 5) started Poser again, loeaded the library file 6) it asked for the missing map, I selected the new file(name) in the new location 7) 30 seconds later the figure opened, with the substituted map 8) re-checked the materials box, the popup showed the new filename I've heard some claims that VirtualPC runs smoother than the real thing, but...