I just bought a DX7fdII with Gray Matter E! and I'm having trouble accessing the floppy disc that came with the unit. I have the keyboard manual and have been following the instructions for loading internal memory from disk. I hit edit, then disk (16), the led screen displays "disk int". I put in the disk and push yes at "dir", the led screen reads "busy now executing" and then brings up 8 different files on the screen, but no sounds on the keyboard. The guy I bought it from says the disk was sent to him by Yamaha and has all the cartridge sounds on it, but without the keyboard in front of him, he can't remember how to access the sounds. the xeroxed copy of the gray matter E1 manual has been no help either, but that manual is just for a DX7.
I'm either totally stupid or just missing something.
I also tried pushing yes at "load" from the "disc int" point. I get a "memory protect on" message there.
Sorry, I know this is basic stuff, but I haven't touched a DX7 in any configuration since about 1985.
Help?

Kent