Running Windows 7 Pro 64 bit and installed 3.0 version of Photograv. Have downloaded the file for adding new Materials, in this case 12 new Woods. Copied the BMP files to the Materials folder and the other file pg.mtl to the root directory of Photograv both files are in the proper place and the BMP's are showing the wood images.
Needless to say I would not be posting here if it worked. A email to PG support yields the advice to do as above.
The next suggestion was un-install and re-install the software... which did not work.
Suggestions from users of the software?