I also once had. Not only do the foppy in the machine and then turn it on.No, Do this only when you choose your screen buttons config page. Then your floppy in it and he does it may. It was to me in the book of the machine. watch the sequence. Hopefully you understand what I mean. And I hope it solved the problem.

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so go to the first menu option, press not on floppy button. Then the disk and then press the button, succeed??

What program are you using to put the designs on your floppy? I know in disk manager from viking you have to read the floppy first before you can add any designs to it or it will do exactly what you are saying.