Thanks for your response.
I've tried SignBlazer but....
I've had many problems when importing picture from Illustrator either .eps or .ai. I succeeded maybe when exporting in Illustrator 8 format... but the only thing that happened when trying to cut this picture is that ... an old file of the previous owner of the machine (which must be kept in internal memory?) has been cut !
This software cannot manage .svg format too. Too bad! Good point: your config advice worked at first time for connection !
Regards
Philippe